Psychopath Diary

2019 South Korean television series

Psychopath Diary

Promotional poster

Hangul|

싸이코패스 다이어리

RR| Ssaikopaeseu daieori
MR| Ssaik'op'aesŭ taiŏri
Genre|

* Comedy
* Thriller[1]

Created by| Studio Dragon
Written by|

* Choe Sung-jun
* Kim Hwan-chae
* Ryu Yong-jae

Directed by| Lee Jong-jae
Starring|

* Yoon Shi-yoon
* Jung In-sun
* Park Sung-hoon

Country of origin| South Korea
Original language| Korean
No. of episodes| 16
Production
Running time| 60 minutes[2]
Production company| KeyEast[3]
Original release
Network| tvN
Release| November 20, 2019 (2019-11-20) –
January 9, 2020 (2020-01-09)

Psychopath Diary (Korean: 싸이코패스 다이어리) is a 2019 South Korean television series starring Yoon Shi-yoon, Jung In-sun and Park Sung-hoon. It aired on tvN from November 20, 2019 to January 9, 2020.

## Synopsis

[edit]

Yook Dong-sik (Yoon Shi-yoon), an analyst who works at Daehan Securities, has a timid personality. He can't even get angry at the people who look down upon him. One day, shortly after failing on his attempt of suicide, he witnesses a murder. He unintentionally picks up a diary belonging to the murderer, on which was written the log of his murders. He flees with the diary, but he is accidentally hit by Police Officer Shim Bo-kyung's (Jung In-sun) patrol car which causes him to suffer from retrograde amnesia. Due to the diary in his possession, Dong-sik mistakenly believes he is a psychopath. Since that moment, his behavior started to change. Bo-kyung, who got involved with Dong-sik, decides to catch the serial killer.

Meanwhile, Seo In-woo (Park Sung-hoon), the director and son of the chairman of Daehan Securities where Dong-sik works, turns out to be the heartless psychopath serial killer. He loses his diary when his 6th victim, a homeless old man tossed his diary away. He feels insecure ever since, He is obsessed and in love with DongSik .[4]

## Cast

[edit]

### Main

[edit]

* Yoon Shi-yoon as Yook Dong-sik, a timid and pushover man who works as a clerk at Daehan Securities. His weak personality begins to change when he perceives himself as a killer.[5]
* Jung In-sun as Shim Bo-kyung, an officer in a patrol station.[6]
* Park Sung-hoon as Seo In-woo, the real psychopathic serial killer who is also the director of Daehan Securities where Dong-sik works at.[5]

### Supporting

[edit]

#### People around Yook Dong-sik

[edit]

* Lee Han-wi as Yook Jong-chul, Dong-sik's father.
* Hwang Geum-byul as Yook Ji-yeon, Dong-sik's older sister.
* Kim Gyul as Jo Yong-gu, Dong-sik's brother-in-law.[7]
* Jung Su-bin as Yook Dong-chan, Dong-sik's younger half-brother.[8]
* So Hee-jung as Na In-hye, Dong-sik's step-mother, Dong-chan's mother.
* Heo Sung-tae as Jang Chil-sung, a gangster who lives at Unit 708. He later addresses Dong-sik as his 'Big Boss' after mistakenly believes him to be a serial killer.

#### People around Shim Bo-kyung

[edit]

* Choi Sung-won as Heo Taek-soo, Bo-kyung's partner.
* Kim Myung-soo as Shim Seok-gu, Bo-kyung's father who is a former investigator police.
* Lee Kan-hee as Lee Suk-yeon, Bo-kyung's mother.
* Lee Hae-young as Officer Ryu Jae-joon

#### People around Seo In-woo

[edit]

* Park Jung-hak as Seo Chung-hyeon, In-woo's father who is the chairman of Daehan Securities.
* Yoo Bi as Seo Ji-hun, In-woo's step-brother and managing director of Daehan Securities.
* Yoon Ye-hee as Kim Eun-shil, Chung-hyeon's wife and Ji-hun's mother.
* Kim Hye-na as Seo Ji-eun, In-woo's step-sister.
* Lim Il-gyu as Kim Chan-il, In-woo's brother-in-law.
* Han Soo-hyun as Kim Mu-seok, former detective who now works for In-woo.

#### People at Daehan Securities

[edit]

* Choi Dae-chul as Gong Chan-seok, the manager of Team 3 and Dong-sik's boss who is selfish and rude.
* Kim Ki-doo as Park Jae-ho, Dong-shik's cunning team member who claims to be his best friend.
* Jo Shi-nae as Han Jung-ah, Dong-sik's colleague.
* Lee Min-ji as Oh Min-joo
* Choi Tae-hwan as Shin Seok-hyun[9]
* Hwang Sun-hee as Jo Yoo-jin[9]

### Others

[edit]

* Gu Ja-geon as a bully

### Special appearances

[edit]

* Jung Hae-kyun as Kim Myung-gook, a homeless man. (Ep. 1–2)
* Yura as a girl with a dog in park (Ep. 2)
* Nam Jung-hee as murder victim (Ep. 2)
* Jo Yoon Ho as Chil-sung's junior (Ep. 2)
* Han Ji-eun as a woman with a big guy (Ep. 2)
* Yoon Ji-on as Joo Young-min (Ep. 4–5)
* Lee Hyun-woong as Oh Myung-dal (Ep. 12–13, 16)

## Production

[edit]

The first script reading was held in August 2019 in Sangam-dong, Seoul.[10]

## Original soundtrack

[edit]

Psychopath Diary OST

Soundtrack album by

Various Artists

Released| 2019-20
Genre| Soundtrack
Language|

* Korean
* English

Label| Stone Music Entertainment

### Part 1

[edit]

Released on December 12, 2019 (2019-12-12)No.| Title| Artist| Length

|
|
|

1.| "Wanna be Bad" (슬퍼하고싶어)| Woosung (The Rose)| 2:59
2.| "Wanna be Bad" (Inst.)|  | 2:59
Total length:| 5:18

### Part 2

[edit]

Released on January 2, 2020 (2020-01-02)No.| Title| Artist| Length

|
|
|

1.| "Stay the same" (동일하게)| Cha Yeo-wool| 3:26
2.| "Stay the same" (Inst.)|  | 3:26
Total length:| 6:52

Disc 2:No.| Title| Artist| Length

|
|
|

1.| "Psychopath Diary" (Opening Title)| Um Ki Yup, Um Ki Hyun, Lee Sun Gyeol| 2:54
2.| "Dongshik's Polka"| Um Ki Yup, Um Ki Hyun, Lee Sun Gyeol| 2:35
3.| "Red Diary"| Um Ki Yup, Park Min Ji| 2:40
4.| "Suspense"| Kim Hee Jin| 1:40
5.| "Dongshik's related memories"| Um Ki Yup, Um Ki Hyun, Park Min Ji| 3:46
6.| "Do I look like a pushover"| Um Ki Yup, Um Ki Hyun| 3:10
7.| "I'm a Psycho"| FaraEffect| 3:06
Total length:| 24:17

## Viewership

[edit]

Psychopath Diary : South Korea viewers per episode (thousands)

Season| Episode number| Average

|
|

1| 2| 3| 4| 5| 6| 7| 8| 9| 10| 11| 12| 13| 14| 15| 16
| 1| 440| 329| 451| 570| 563| 586| 613| 582| 507| 398| 426| 572| 502| 615| 719| 710| 536

Source: Audience measurement performed nationwide by Nielsen Korea.[11]

Average TV viewership ratings  Ep. | Original broadcast date  | Average audience share
(Nielsen Korea)[12]

|
|

Nationwide | Seoul
1  | November 20, 2019  | 1.766%  | 1.730%
2  | November 21, 2019  | 1.463% | 1.361%
3  | November 27, 2019  | 1.928%  | 2.057%
4  | November 28, 2019  | 2.206%  | 2.174%
5  | December 4, 2019  | 2.368%  | 2.507%
6  | December 5, 2019  | 2.212%  | 2.346%
7  | December 11, 2019  | 2.424%  | 2.866%
8  | December 12, 2019  | 2.299%  | 2.782%
9  | December 18, 2019  | 2.014%  | 2.099%
10  | December 19, 2019  | 1.693%  | 1.954%
11  | December 25, 2019  | 1.708%  | 2.025%
12  | December 26, 2019  | 2.295%  | 2.718%
13  | January 1, 2020  | 1.939%  | 2.213%
14  | January 2, 2020  | 2.423%  | 2.633%
15  | January 8, 2020  | 2.685%  | 2.762%
16  | January 9, 2020  | 2.983% | 3.372%
Average  | 2.150% | 2.350%

* In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
* This series aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).

## References

[edit]

1. ^ "윤시윤·정인선·박성훈, 코믹 스릴러 '싸이코패스 다이어리' 주연 확정". Naver (in Korean). Digital Times. Archived from the original on April 4, 2023. Retrieved September 7, 2019.
2. ^ "Psychopath Diary (2019)". CJ ENM. Archived from the original on March 26, 2022. Retrieved March 26, 2022.
3. ^ "'싸이코패스 다이어리' 이한위 허성태→이민지까지, 퍼펙트 라인업(공식)". Naver (in Korean). Newsen. Archived from the original on August 23, 2021. Retrieved September 7, 2019.
4. ^ "'싸이코패스 다이어리' 윤시윤X정인선X박성훈, 캐스팅 확정…믿보 라인업 구축". Naver (in Korean). The Korea Economic Daily. Archived from the original on November 24, 2021. Retrieved September 7, 2019.
5. ^ a b "Yoon Si-yoon, Jung In-sun, Park Sung-hoon Confirmed for "Psychopath Diary"". HanCinema. News1 Korea. Archived from the original on November 24, 2021. Retrieved September 7, 2019.
6. ^ "Yoon Si-yoon and Jung in-sun Courted for Drama "Psychopath Diary"". HanCinema. Xports News. Archived from the original on November 24, 2021. Retrieved September 7, 2019.
7. ^ "Kim Gyul to Star in "Psychopath Diary"". HanCinema. Wow TV. Archived from the original on September 8, 2019. Retrieved September 7, 2019.
8. ^ 빅톤 정수빈, tvN '싸이코패스 다이어리' 합류…연기돌 행보(공식). Naver (in Korean). Newsen. Archived from the original on January 10, 2022. Retrieved September 24, 2019.
9. ^ a b "Hwang Sun-hee and Choi Tae-hwan Confirmed for "Psychopath Diary"". HanCinema. Archived from the original on September 22, 2019. Retrieved September 7, 2019.
10. ^ "'싸이코패스 다이어리' 윤시윤·정인선·박성훈, 첫 리딩부터 '시너지↑'". Naver (in Korean). Ilgan Sports. Retrieved September 26, 2019.
11. ^ "Nielsen Korea". AGB Nielsen Media Research (in Korean). Archived from the original on February 19, 2023. Retrieved July 29, 2020.
12. ^ "Nielsen Korea". AGB Nielsen Media Research (in Korean). Archived from the original on June 1, 2016. Retrieved November 20, 2019.

## External links

[edit]

* Official website (in Korean)
* Psychopath Diary at IMDb
* Psychopath Diary at HanCinema

* v
* t
* e

Works by Studio Dragon

As production company|

* Another Miss Oh
* Dear My Friends
* Squad 38
* The Good Wife
* On the Way to the Airport
* Woman with a Suitcase
* Entourage
* The Legend of the Blue Sea
* Circle
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* Bravo My Life
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* episodes
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* My Holo Love
* Once Again
* The King: Eternal Monarch
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* Navillera
* Doom at Your Service
* The Devil Judge
* The Witch's Diner
* Kingdom: Ashin of the North
* Hometown Cha-Cha-Cha
* Yumi's Cells
* Hometown
* Jirisan
* Happiness
* Secret Royal Inspector & Joy
* Bad and Crazy
* Bulgasal: Immortal Souls
* Ghost Doctor
* Military Prosecutor Doberman
* The King of Pigs
* Eve
* Link: Eat, Love, Kill
* Alchemy of Souls
* Adamas
* Big Mouth
* Little Women
* Mental Coach Jegal
* Blind
* Behind Every Star
* Connect
* Island
* Crash Course in Romance
* Pandora: Beneath the Paradise
* Duty After School
* Family: The Unbreakable Bond
* Tale of the Nine Tailed 1938
* Lies Hidden in My Garden
* Celebrity
* Doona!
* The Big Door Prize
* Gyeongseong Creature
* Queen of Tears
* The Midnight Romance in Hagwon
* Hierarchy
* The Whirlwind
* Love Next Door
* Dear Hyeri
* Dongjae, the Good or the Bastard
* Love Your Enemy
* Dear Hongrang

As planner/creator/
developer|

| 2016–18|

* Bring It On, Ghost
* Cinderella with Four Knights
* The K2
* Guardian: The Lonely and Great God
* Voice
* Introverted Boss
* Tomorrow, with You
* The Liar and His Lover
* Tunnel
* Chicago Typewriter
* Duel
* Stranger
* The Bride of Habaek
* Criminal Minds
* Save Me
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* Argon
* Avengers Social Club
* Black
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* The Most Beautiful Goodbye
* Bad Guys 2
* A Korean Odyssey
* Mother
* Cross
* Live
* My Mister
* Mistress
* Lawless Lawyer
* About Time
* What's Wrong with Secretary Kim
* Life on Mars
* Mr. Sunshine
* Familiar Wife
* 100 Days My Prince
* Room No. 9
* Tale of Fairy
* Quiz of God: Reboot
* Priest
* Encounter
* Memories of the Alhambra

|

2019–21|

* The Crowned Clown
* Romance Is a Bonus Book
* Touch Your Heart
* Possessed
* He Is Psychometric
* Confession
* Kill It
* Her Private Life
* Abyss
* Save Me 2
* Search: WWW
* Designated Survivor: 60 Days
* Hotel del Luna
* Class of Lies
* The Great Show
* The Running Mates: Human Rights
* Miss Lee
* Melting Me Softly
* Catch the Ghost
* Psychopath Diary
* Black Dog: Being A Teacher
* Money Game
* Tell Me What You Saw
* The Cursed
* Hi Bye, Mama!
* Memorist
* A Piece of Your Mind
* Rugal
* When My Love Blooms
* Oh My Baby
* It's Okay to Not Be Okay
* Train
* Missing: The Other Side
* Record of Youth
* Tale of the Nine Tailed
* Start-Up
* The Uncanny Counter
* Awaken
* True Beauty
* Mr. Queen
* L.U.C.A.: The Beginning
* Times
* Vincenzo
* Mine
* My Roommate Is a Gumiho
* You Are My Spring
* The Road: The Tragedy of One
* High Class
* Melancholia

2022–25|

* Twenty-Five Twenty-One
* A Superior Day
* Our Blues
* Shooting Stars
* The Killer's Shopping List
* Monstrous
* Poong, the Joseon Psychiatrist
* Under the Queen's Umbrella
* Our Blooming Youth
* The Heavenly Idol
* Stealer: The Treasure Keeper
* Delightfully Deceitful
* See You in My 19th Life
* My Lovely Liar
* Song of the Bandits
* Twinkling Watermelon
* Castaway Diva
* A Bloody Lucky Day
* Maestra: Strings of Truth
* Marry My Husband
* Captivating the King
* Wedding Impossible
* The Auditors
* Jeongnyeon: The Star Is Born
* Dear X
* When the Stars Gossip

* v
* t
* e

tvN television dramas (2006–2019)

2000s debuts|

| 2007|

* Ugly Miss Young-ae

|

2010s debuts|

| 2010|

* Golden House
* Joseon X-Files

|

2011|

* Manny
* I Need Romance
* Birdie Buddy
* Cool Guys, Hot Ramen

2012|

* Flower Band
* 12 Signs of Love
* Ice Adonis
* The Wedding Scheme
* Queen and I
* I Love Lee Taly
* I Need Romance 2012
* Reply
* Glass Mask
* The Third Hospital

2013|

* Flower Boys Next Door
* Nine
* Crazy Love
* Monstar
* Dating Agency: Cyrano
* Who Are You?
* Basketball
* Let's Eat

2014|

* I Need Romance 3
* Emergency Couple
* Gap-dong
* A Witch's Love
* High School King of Savvy
* Marriage, Not Dating
* The Idle Mermaid
* The Three Musketeers
* Plus Nine Boys
* My Secret Hotel
* Misaeng: Incomplete Life
* Liar Game
* Family Secret
* Righteous Love

2015|

* Heart to Heart
* Hogu's Love
* Super Daddy Yeol
* A Bird That Doesn't Sing
* Ex-Girlfriends' Club
* Hidden Identity
* Oh My Ghost
* Second 20s
* Bubble Gum

2016|

* Cheese in the Trap
* Signal
* Pied Piper
* Memory
* Another Miss Oh
* Dear My Friends
* The Good Wife
* Bring It On, Ghost
* Cinderella with Four Knights
* Drinking Solo
* The K2
* Entourage
* Guardian: The Lonely and Great God

2017|

* Introverted Boss
* Tomorrow, with You
* The Liar and His Lover
* Chicago Typewriter
* Circle
* Stranger
* The Bride of Habaek
* Criminal Minds
* Live Up to Your Name
* Argon
* Because This Is My First Life
* Revolutionary Love
* Avengers Social Club
* Prison Playbook
* The Most Beautiful Goodbye
* A Korean Odyssey

2018|

* Mother
* Cross
* Live
* My Mister
* A Poem a Day
* Lawless Lawyer
* About Time
* What's Wrong with Secretary Kim
* Mr. Sunshine
* Familiar Wife
* 100 Days My Prince
* The Smile Has Left Your Eyes
* Room No. 9
* Tale of Fairy
* Top Star U-back
* Encounter
* Memories of the Alhambra

2019|

* The Crowned Clown
* Romance Is a Bonus Book
* Touch Your Heart
* He Is Psychometric
* Confession
* Her Private Life
* Abyss
* Arthdal Chronicles
* Search: WWW
* Designated Survivor: 60 Days
* Hotel del Luna
* When the Devil Calls Your Name
* The Great Show
* Pegasus Market
* Miss Lee
* Melting Me Softly
* Catch the Ghost
* Psychopath Diary
* Crash Landing on You
* Black Dog: Being A Teacher

* Category
* Currrent programming
* Television dramas (2006–2019·2020 onward)
* Variety shows
* TVING original programming

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