Insane (film)

During the day and in the middle of taking a walk downtown, Kang Soo-Ah (Kang Ye-won) is taken away against her will and brought to a psychiatric hospital, where she is locked up. The people working there refuse to answer her questions about why she was taken away, and is given "medication" drugs. If she refuses to take them or fight back, she finds that they will physically harm her in response. While pretending to be okay with everything terrible that is done to her, Soo-Ah begins to secretly write down in detail all of the horrific acts that take place at the psychiatric hospital in a journal she finds.

One year later, Na Nam-Soo (Lee Sang-yoon) is working as a programming director for the same broadcasting station he was suspended from in the previous year. He is assigned to a project to discover what really happened to the psychiatric hospital, which recently burned down in a fire. He finds the notebook belonging to Soo-Ah, but cannot find anything about the fire; to uncover the truth, Nam-Soo seeks out Soo-Ah, who is now in prison as a murder suspect.

• Kang Ye-won as Kang Soo-ah ^[1]
• Lee Sang-yoon as Na Nam-soo ^[1]
• Choi Jin-ho as Jang Hyung-sik
• Ji Dae-han as Kang Byung-joo
• Chun Min-hee as Mi-ro
• Lee Hak-joo as Dong-sik
• Choi Yoon-so as Ji-young
• Jo Jae-yoon as Detective Park
• Gu Won as Woo-sub
• Kim Jong-soo as Detective Cha
• Jang Tae-seong as Depeartment Head Koo
• Yoo Gun as Lee Woo-jin
• Jeon Kwang-jin as death angel
• Kim Ho-won as emergency room doctor
• Ahn Ji-hye as Yeo-kyung
• Park Se-jin as prison doctor
• Kim Hyun as patient's family member
• Gil Hae-yeon as Kang Soo-ah's mother

The film was number-one on its opening weekend in South Korea with US$2.3 million.^[3] On its second weekend it was second placed behind Time Renegades with US$1.43 million.^[2]

• Insane at IMDb