魔警
- Action
- Horror
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.
That Demon Within is a 2014 Hong Kong action-horror film about a dutiful policeman who saves a gang leader's life, then manipulates the criminal underworld to destroy them from within. As his plan spirals, Dan descends into darkness, transforming from law enforcer to wanted fugitive.
When does That Demon Within come out?
Where to watch
Streaming availability in United States
United StatesNot available on any tracked streaming service in United States right now.
Available in: Australia · Canada · Hong Kong · Indonesia · Malaysia · New Zealand · +4 more
That Demon Within is streaming in another region
Available to stream in Hong Kong— but not in United States.
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In cinemas
Theatrical release in United States
Wide release in United States
Theatrical dates from TMDB. Cinema chain links go to the official websites for showtimes and bookings — check there for the actual showtimes near you.
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Digital purchase & rental in United States
Where to watch That Demon Within by country
United Kingdom
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Canada
Australia
BrazilTop cast
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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
Ken WongSmart Ass
Deep Ng Ho-HongKwong
Alice Fung So-BorGranny
Trailer
That Demon Within Official Teaser (2014) - Daniel Wu Crime Movie HD
Related & spin-offs
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That Demon Within — frequently asked
When was That Demon Within released?
The film was released on April 17, 2014.
What is That Demon Within about?
A Hong Kong police officer named Dan saves a gang leader's life by chance, then uses him to orchestrate a plan that turns the criminals against each other. As events unfold, Dan's mental state deteriorates and he becomes a fugitive wanted for murder.
What genres is That Demon Within?
The film is an action-horror hybrid that blends crime thriller elements with psychological darkness.
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