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Mouse
On tvN — From HIGROUND · Studio Invictus
The most heinous psychopath. The most evil predator ever. The truth of the unsolved case.
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🔔 Notify me about new seasonsSynopsis
A psychopath's ruthless serial murders have left the entire nation gripped by fear and chaos. An honest, justice-seeking rookie police officer and a veteran detective with a tragic past, face off against the killer. After their encounter with the psychopath, their lives change completely.
Themes
Episodes
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- E1 The Head HunterNext upMar 3, 2021 · 85 min · ★ 7.7
Synopsis
Terrifying news of an unsolved serial killing case strikes the country, putting everyone in fear. One day, a family of four visits a camp site just to face a horrible death by this very serial killer, Head Hunter. A boy survives the ambush and later on pinpoints the prime suspect as the killer. Meanwhile, a gene test to verify an unborn fetus for its potential psychopathic characteristics is carried out on Head Hunter’s baby, and the baby’s mother has to make a choice.
Guest stars: Park So-i (Young Choi Hong-joo), Lee Eon-jeong (Pregnant Lady), Jo Yeon-ho (Young Go Moo-won), Seo Jeong-yeon (Go Moo-chi's Mother), Jeong Kang-hee (Go Moo-chi's Dad), Ahn Jae-wook (Han Seo-jun), Kim Jung-nan (Sung Ji-eun), Kim Kang-hoon (Young Jae-hoon)
- E2 Eye for an EyeMar 4, 2021 · 84 min · ★ 7.5
Synopsis
Moo Chi visits the Head Hunter at the prison and tells him that he’ll not only kill the Head Hunter but find his son and make him suffer as he did. Meanwhile, more murder victims are found in a row and the culprit is leaving leads, asking to be noticed. When Ba Reum visits Moojin Prison, he sees the Head Hunter and also witnesses another murder case.
Guest stars: Suh Dong-hyun (Teenage Go Moo-chi), Jo Yeon-ho (Young Go Moo-won), Kim Yeong-ok (Oh Bong-yi's Grandmother), Joo Ye-rim (Young Oh Bong-yi), Ahn Jae-wook (Han Seo-jun), Kim Jung-nan (Sung Ji-eun), Kim Kang-hoon (Young Jae-hoon), Hyun Bong-sik (Bok Ho-nam)
- E3 Resurfacing Murder CasesMar 10, 2021 · 82 min · ★ 8.2
Synopsis
Chi Kook has been found at the prison with multiple stab marks all over his body along with a message written in blood. Not long after that, Chi Kook’s watch, a present gifted by Ba Reum and Dong Koo, was retrieved at the grape farm murder site, leading Ba Reum to join Moo Chi for the investigation. Meanwhile, Bong Yi’s grandmother stumbles upon something she should’ve never found out while working as a cleaning lady for Bong Yi’s settlement money.
Guest stars: Park So-i (Young Choi Hong-joo), Kim Yeong-ok (Oh Bong-yi's Grandmother), Joo Ye-rim (Young Oh Bong-yi), Kim Jung-nan (Sung Ji-eun), Kim Kang-hoon (Young Jae-hoon), Son Woo-hyeon (Kim Joon Sung), Hyun Bong-sik (Bok Ho-nam), Yoon Seo-hyun (Kang Ki-Hyeok)
- E4 Who Are You?Mar 11, 2021 · 73 min · ★ 8.0
Synopsis
After Bong Yi’s grandmother is murdered and a mysterious finger is found at a church, Moo Chi and his team start investigating more thoroughly. Moo Chi feels that something is suspicious about Doctor Sung Yo Han, but he can’t find any evidence yet. A boy suddenly gets kidnapped and Moo Chi gets a call from the kidnapper. He demands Moo Chi to find out the reason why the boy had to be kidnapped before a certain time. Will Moo Chi be able to save the kid?
Guest stars: Kim Yeong-ok (Oh Bong-yi's Grandmother), Kim Jung-nan (Sung Ji-eun), Son Woo-hyeon (Kim Joon Sung), Hyun Bong-sik (Bok Ho-nam), Yoon Seo-hyun (Kang Ki-Hyeok), P.O (Shin Sang), Park Jae-wan (Police Commissioner), Kang Mal-geum (Jung Ba-Reum's Aunt)
- E5 The Live BroadcastMar 17, 2021 · 63 min · ★ 8.9
Synopsis
An hour-long live broadcast goes on air in hopes to save Han Kook. But Ba Reum sets off to a discreet journey as the rest struggle hard to find out the predator’s motive of murder. During the live broadcast, endless tip-offs and reports from former victims of the predator flood into the broadcast station. The investigation seems to progress in a positive outlook as Moo Chi narrows down the suspects. Will they be able find the murderer in time?
Guest stars: Kim Ha-eon (Kim Han-kook), Cherish Maningat (Kim Han-Kook's Mother), Chun Jung-Ha (Na Chi-Kook's Mom), Ahn Nae-sang (Park Du-seok), Kim Min-kyung (Song Soo-jung's Mother), Lee Seo-jun (Na Chi Kook), Park Hye-na (Byun Soon-Young), Seon Ah Rin (Jo Mi-Jung)
- E6 The Donkey and the GoatMar 18, 2021 · 81 min · ★ 8.2
Synopsis
After Moo Won is brutally murdered, Moo Chi gives up on everything and only keeps drinking. While Han Kook is still missing and his life is under threat, the police haven’t found any clues on the culprit. When Moo Chi gets back on his feet and starts investigating Bong Yi’s grandmother’s case, he finds out about Yo Han and his mother.
- E7 Memory LossMar 24, 2021 · 77 min · ★ 8.0
Synopsis
After getting a gunshot wound, Yo Han is in critical condition. Ba Reum gets brain surgery. But after receiving the brain surgery, he suffers from memory loss. After a year, Moo Chi is assigned to a new team that collects and organizes criminal evidence. Ba Reum starts to work for a small precinct. On his first day at work, he accidentally finds a dead body.
Guest stars: Jeong Yoon-hee (Reporter (Eps 7))
- E8 Ba-reum's MemoriesMar 25, 2021 · 69 min · ★ 8.2
Synopsis
Ba Reum’s instinctive intuition helps Moo Chi get closer to the bottom of the mystery behind the knots. But he suffers from the random flashbacks that seem very unfamiliar. While investigating the suspects, Moo Chi and Ba Reum spot a man who stands out from the rest. On the other hand, Kang Duk Soo, who has been released from prison keeps trying to find out where Bong Yi lives.
- E9 Ba-reum's BrainMar 31, 2021 · 66 min · ★ 8.0
Synopsis
Ba Reum finds out about a shocking story behind his brain surgery a year ago. He’s tormented by unwanted memories that keep haunting him. Detective Ko is furious at Han Seo Joon’s remark of being saved and being at peace after accepting Christ and decides to kill him himself.
Guest stars: Kim Ha-neul (Jung Soo-jin)
- E10 Sung Yo-han in MeApr 1, 2021 · 83 min · ★ 8.0
Synopsis
Ba Reum finds himself acting a lot more violent than before and realizes that it’s getting harder to control himself. He even gets the urge to kill someone. While Ba Reum is terrified that the Yo Han inside him might take him over completely, another murder case occurs that shows the MO of the previous murder cases. If Yo Han wasn’t the culprit of the serial murders, then is the piece of brain transplanted into Ba Reum’s head not of a psychopath?
Guest stars: Kang Ro-chae (Park Hye-won), Kim Ha-neul (Jung Soo-jin)
- E11 Kill Him! Kill Her!Apr 8, 2021 · 72 min · ★ 8.5
Synopsis
Ba Reum keeps hearing Yo Han’s voice in his head telling him to kill people. The hallucination eventually made him murder Woo Hyung Chul. When he goes to the station to turn himself in, he finds out all the evidence related to his murder is gone, including Woo Hyung Chul’s body. Bong Yi runs into Kang Duk Soo, which makes her anxious. On a rainy day, Kang Duk Soo starts making a move again.
- E12 The Yo-han in Ba-reumApr 14, 2021 · 63 min · ★ 8.3
Synopsis
After killing Kang Duk Soo, Ba Reum keeps a close eye on how the investigation rolls out. He tries to keep a foot ahead so his murder stays unveiled. Bong Yi on the other hand, thinks Moo Chi was the killer of Kang and keeps her mouth shut even when she’s being speculated as a suspect.
- E13 DNA on the WeaponApr 15, 2021 · 67 min · ★ 7.3
Synopsis
The DNA result found on the weapon that was used to kill Kang Duk Soo confuses Moo Chi. Bong Yi joins Hong Ju’s team and starts investigating the Suseong serial murder case. With Ba Reum, Bong Yi begins to find the link between the Suseong serial murder cases and the Guryeong attempted murder case. At the same time, Moo Chi also looks into one of the inmates’ cases from Moojin Penitentiary.
- E14 The Cat KillerApr 21, 2021 · 83 min · ★ 8.5
Synopsis
Ko Nam, a bright and insightful kid finds out about a cat killer around his neighborhood. One day, he promises to share his personal investigation with Bong Yi but unexpectedly goes through an accident. Ba Reum and Moo Chi dig deeper to find out who would’ve done such a heinous act to a little kid.
Guest stars: Kim Sung Jun (Myung Go Nam)
- E15 It Was All Me!Apr 22, 2021 · 75 min · ★ 8.5
Synopsis
Ba Reum starts to remember everything and is filled with guilt. When Ba Reum sees Han Kook’s mother desperately looking for her child even after a year, he decides to confess his crimes and clear Yo Han’s name. Meanwhile, Moo Chi notices that Chi Kook is lying and that he reacts strangely sensitive towards Ba Reum.
- E16 Was It Really Sung Yo-han?May 5, 2021 · 64 min · ★ 8.0
Synopsis
Chi Kook’s sudden death shocks everyone and Ba Reum tries to convince Chi Kook’s mom in requesting an autopsy. Meanwhile, Detective Ko starts to doubt that Sung Yo Han was the real killer. He starts to dig deeper into Song Soo Ho’s past.
Guest stars: Baek Jae-woo (Song Su Ho [Young])
- E17 The Guryeong Family MassacreMay 6, 2021 · 73 min · ★ 8.0
Synopsis
Ba Reum finally remembers what exactly happened to his family. He tries to set a trap to catch the mysterious OZ, and he finds out a secret about Dr. Daniel Lee in the process. Meanwhile, Moo Chi finds the unregistered car the OZ, the murderer who killed Chi Kook, used.
Guest stars: Baek Jae-woo (Song Su Ho [Young])
- E18 Please, Give Me Some TimeMay 12, 2021 · 72 min · ★ 8.5
Synopsis
Moo Chi finds out that Ba Reum was the killer and ferociously charges after him at the station. Moo Chi also suspects Detective Lee being part of the OZ organization and tries to carry out an investigation on the two, but it’s not easy. As flustered as he is, Ba Reum tries to remain calm to buy time until he figures out the killer of Chi Kook.
Guest stars: Baek Jae-woo (Song Su Ho [Young])
- E19 Kim Joon-sung's LaptopMay 13, 2021 · 63 min · ★ 8.5
Synopsis
Moo Chi and Bong Yi get closer to the truth. In the meantime, Ba Reum tries to find his aunt, the last missing puzzle piece. Sang, who tries to confirm Ba Reum’s alibi, finds something suspicious at Ba Reum’s house.
Guest stars: Baek Jae-woo (Song Su Ho [Young])
- E20 Ba-reum's Final CallMay 19, 2021 · 100 min · ★ 8.6
Synopsis
Ba Reum makes the final decision to turn himself in and finish one last mission that only he can do. Hong Ju also shares her big secret that’s been tormenting her for years on her last show with Hee Jin, a woman who in fact was a secret agent working for Choi Young Shin under a massive private organization.
Guest stars: Baek Jae-woo (Song Su Ho [Young])
Cast & crew
Directed by Kang Cheol-woo, Choi Joon-bae
Lee Seung-gi
Lee Hee-jun
Park Ju-hyun
Kwon Hwa-woon
Gyeong Su-jin
Woo Ji-hyun
Jo Jae-yun
Kim Young-jae
Hwang Se-onVideos
Trailers
Images · 14
