Mouse follows rookie police officer Jung Ba-reum (Lee Seung-gi) who, in his desperate quest for justice, stumbles across a dangerous serial killer. While he manages to evade the serial killer, he remains scarred by the encounter – leading to some interesting changes in his life.  

Directed by: Choi Joon-bae
Written by: Choi Ran
Starring: Lee Seung-gi, Lee Hee-joon, Park Joo-hyun, Kyung Soo-jin, Kim Kang-hoon
Extended Cast: Ahn Jae-wook, Kim Jung-nam, Pyo Ji-hoon, Woo Ji-hyun, Kim Young-ok, Jo Jae-yoon, Kim Young-jae, Lee Seo-joon, Moon Woo-jin, Kwon Hwa-yoon, Kang Mal-geum, Seo Dong-hyun, Jin Seo-yun, Lee Ja-ryung, Kim Mi-hye, Ma Dong-seok
Original network: tvN
Original release: 3 March 2021
No. of episodes: 20
Running Time: 70 Minutes
Production Company(s): HIGROUND, Studio Invictus
Distributor: tvN
Source: tvN