That Demon Within
2014, Cantonese. Directed by Dante Lam Chiu-yin.
By a strange twist of fate, dutiful Hong Kong policeman Dan saves the life of the leader of a violent gang of armed robbers. When they commit another crime, Dan is determined to put an end to their activities. He works with the leader, whom the gang had betrayed, to engineer a plan to wreak havoc within the gang and let the gangsters kill one another. But it becomes increasingly obvious to Dan and to his colleagues that Dan is suffering from a severe mental disorder, and Dan finds that instead of upholding the law as a righteous police officer, he has now become a fugitive wanted for murder.
- Runtime
- 1h 52m
- Post-credits
- None listed
- Language
- Cantonese
- Rated
- Check local
Start now and it ends at ….
Snoozefest
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5.6/10 from 80 TMDB viewer ratings.
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Where to watch That Demon Within
That Demon Within isn’t streaming on any OTT platform in India yet; it released on 17 April 2014.
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Cast & crew
- Dante Lam Chiu-yinDirector
- Daniel WuDave Wong
- Nick Cheung Ka-faiHon Kong / Riot police officer
- Andy On Chi-kitBen Chan
- Liu Kai-ChiBroker
- Christie ChenLiz Kwok
- Dominic Lam Ka-wahInspector Mok
- Chi Kuan-ChunDave's Father
- Astrid Chan Chi-ChingStephanie
- Joseph Lee Kwok-LunEffigy
- Stephen Au Kam-tongEmcee
- Samuel Leung Cheuk-moonRookie
- Dave Lam ChingChanter
Details
- Released
- 17 April 2014
- Original title
- 魔警
- Country
- Hong Kong, China
- Written by
- Dante Lam Chiu-yin, Jack Ng Wai-lun
Check ratings elsewhere
News & fan talk
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That Demon Within: quick answers
Is That Demon Within worth watching?
Our verdict is Snoozefest: Your time is worth more. It scores 5.6/10 from 80 TMDB viewer ratings.
How long is That Demon Within?
That Demon Within runs 112 minutes (1h 52m).
Does That Demon Within have a post-credits scene?
None is listed for That Demon Within. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
That Demon Within parents guide: is it suitable for kids?
No age rating is listed for That Demon Within yet.
Which OTT platform is That Demon Within on?
That Demon Within isn’t streaming on any OTT platform in India yet; it released on 17 April 2014. (Checked 9 November 2026.)
What movies are like That Demon Within?
If you liked That Demon Within, try Home Sweet Home: Rebirth, King of Killers, Border Hunters.
Who directed That Demon Within?
That Demon Within (2014) was directed by Dante Lam Chiu-yin and stars Daniel Wu, Nick Cheung Ka-fai, Andy On Chi-kit.