U.K.'s Optimum Releasing has picked up Korean director Kim Jee-woon's upcoming thriller I Saw the Devil.

According to Variety, the film is a hard-boiled thriller about a psychopathic serial killer and a top secret agent whose fiancee has become one of the victims.

Top Korean actors Choi Min-sik and Lee Byung-hun take the roles respectively.

The film is currently in production and will be released early August.