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That Demon Within (2014) – Official Trailer, Cast & Details
That Demon Within at a Glance
That Demon Within is a 2014 action and horror film helmed by Dante Lam Chiu-yin, with a cast led by Daniel Wu, Nick Cheung Ka-Fai and Andy On Chi-Kit. It runs 1 hour 52 minutes and premiered on April 17, 2014. That Demon Within has a TMDB rating of 5.6 out of 10 based on 79 votes.
Watch the official That Demon Within trailer for free in 123Movies below.
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Storyline & Synopsis
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.
Where “That Demon Within” Fits in the 123Movies Catalog
Daniel Wu
Dave Wong
Nick Cheung Ka-Fai
Hon Kong / Riot police officer
Andy On Chi-Kit
Ben Chan
Liu Kai-Chi
Broker
Christie Chen
Liz Kwok
Dominic Lam Ka-Wah
Inspector Mok
Chi Kuan-Chun
Dave's Father
Astrid Chan Chi-Ching
Stephanie
Joseph Lee Kwok-Lun
Effigy
Stephen Au Kam-Tong
Emcee
Samuel Leung Cheuk-Moon
Rookie
Dave Lam Ching
Chanter
Frequently Asked Questions About That Demon Within
When was That Demon Within released?
That Demon Within was released on April 17, 2014.
What is the runtime of That Demon Within?
That Demon Within has a runtime of 1 hour 52 minutes (112 minutes).
Who stars in That Demon Within?
That Demon Within stars Daniel Wu as Dave Wong, Nick Cheung Ka-Fai as Hon Kong / Riot police officer, Andy On Chi-Kit as Ben Chan and Liu Kai-Chi as Broker. The cast also includes Christie Chen, Dominic Lam Ka-Wah, Chi Kuan-Chun and Astrid Chan Chi-Ching.
Who directed That Demon Within?
That Demon Within was directed by Dante Lam Chiu-yin. The screenplay is credited to Dante Lam Chiu-yin and Jack Ng Wai-Lun.
What genre is That Demon Within?
That Demon Within is listed on TMDB as a mix of action and horror.
What is the TMDB score of That Demon Within?
On TMDB it has an average user score of 5.6/10 from 79 votes.
Where can I watch the trailer for That Demon Within for free?
You can watch the trailer for That Demon Within, "That Demon Within Official Teaser (2014) - Daniel Wu Crime Movie HD", for free on this 123Movies page. It is embedded from YouTube.
What movies are similar to That Demon Within?
Movies TMDB recommends alongside That Demon Within include King of Killers (2023), Border Hunters (2025), Dangerous (2021), Exit Protocol (2025) and Art of Eight Limbs (2024).
Can I stream the full movie of That Demon Within on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
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