Mad Detective

Name: Mad Detective
Genre: Action, Crime, Thriller
Released: 2007-11-29
Duration: 1 h 31 min
Rating: 7.1
Cast: Lau Ching-Wan, Andy On Chi-Kit, Gordon Lam Ka-Tung, Kelly Lin Hsi-Lei, Karen Lee Choi-Ling

2007·Movie·91 min·★ 7.1(224)

Action Crime Thriller

“I can see a person's inner personality.”

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.

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Where to watch Mad Detective in United States

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Click a service to open Mad Detective there. Availability last verified on June 21, 2026.

About Mad Detective

Mad Detective is a 2007 Chinese-language action, crime and thriller film directed by Wai Ka-fai and Johnnie To. The cast is led by Lau Ching-Wan, Andy On Chi-Kit, Gordon Lam Ka-Tung. It has a runtime of 1h 31m. Viewers rate it 7.1/10 across 200 ratings. In United States, it is currently streaming on AMC Plus Apple TV Channel , AMC+ Amazon Channel, AMC+.

Mad Detective was produced by Milkyway Image and made in Hong Kong. It was released on November 29, 2007.

Director: Wai Ka-fai, Johnnie To
Writers: Au Kin-Yee, Wai Ka-fai
Release date: November 29, 2007
Original language: Chinese
Status: Released
Country: Hong Kong
Production: Milkyway Image

Mad Detective cast & crew

Mad Detective was directed by Wai Ka-fai and Johnnie To and written by Au Kin-Yee and Wai Ka-fai.

The cast features 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, and Joseph Lee Kwok-Lun as Wong Kwok Chu.

Behind the camera, the score was composed by Xavier Jamaux, cinematography is by Cheng Siu-Keung, and it was produced by Charles Heung and Wai Ka-fai.

Is Mad Detective worth watching?

Mad Detective holds an audience score of 7.1/10 from 224 ratings, marking it as well-reviewed action films.

At 1h 31m, it's an easy, time-light watch.

If you enjoy action, crime, and thriller, Mad Detective is worth a place on your watchlist.

How and where to watch Mad Detective

In United States, you can stream Mad Detective on AMC Plus Apple TV Channel , AMC+ Amazon Channel, AMC+, YouTube TV, and Philo. Click any service above to open it directly.

Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.