Mad Detective (2007)
Kernel Score: 77% · 221 ratings
Genres: Action, Crime, Thriller
Released: 2007-11-29
Runtime: 91 minutes
Where to watch Mad Detective
- Stream: Philo, AMC+, Sundance Now, IFC Films Unlimited Apple TV channel
- Free with ads: Kanopy
- Rent: Apple TV
- Buy: Apple TV
US availability, updated 2026-10-22.
Overview
Bun, a schizophrenic, former police inspector comes out of retirement to help a rookie detective solve a complex murder case involving a missing colleague and a suspected policeman suffering from a multiple personality disorder.
Mad Detective parents' guide: ages 13+
Parents need to know that Mad Detective is a crime thriller involving murder investigation and mental illness themes.
- Violence & scariness: Moderate — Involves a murder investigation with implied violent crime, though not explicitly graphic per available signals.
Fresh Kernels AI-assessed from publicly documented content. A guide for families, not an official rating.
Director
Wai Ka-Fai
Cast
- Sean Lau Ching-wan as Inspector Chan Kwai Bun
- Andy On Chi-Kit as Inspector Ho Ka-on
- Gordon Lam Ka-Tung as Ko Chi Wai
- Kelly Lin Hsi-Lei as May Cheung
- Karen Lee Choi-Ling as Gigi
- Joseph Lee Kwok-Lun as Wong Kwok Chu
- Eddie Cheung Siu-Fai as Violent Man - Ko's Inner Personality
- Lam Suet as Fatso - Ko's Inner Personality
- Jay Lau Kam-Ling as Calculating Woman - Ko's Inner Personality
- Jeff Cheung Ka-Kit as Ko's Inner Personality
Mad Detective FAQ
Is Mad Detective good?
Mad Detective has a 77% Kernel Score on Fresh Kernels from 221 audience ratings.
Where can I watch Mad Detective?
In the US you can stream Mad Detective on Philo, AMC+, Sundance Now and IFC Films Unlimited Apple TV channel, watch it free with ads on Kanopy and rent it from Apple TV.
Is Mad Detective OK for kids?
Fresh Kernels suggests ages 13+. Parents need to know that Mad Detective is a crime thriller involving murder investigation and mental illness themes.