The Secret Code (1965)

A determined detective continues his search for the truth behind Asia's largest drug organization and its elusive boss he has unfinished business with.

Liu Yue Ping reports to the ICAC about a rich 2G Cao Yuen Yuen who bribed officers of the Hong Kong Correctional Services (HKCS) from inside the prison. William Luk decides to infiltrate the prison as an inmate to conduct his investigation, while his partner Ching Tak Ming and Chief Inspector Lau Po-keung back him up from the outside.

Detective Ma Seok-do changes his affiliation from the Geumcheon Police Station to the Metropolitan Investigation Team, in order to eradicate Japanese gangsters who enter Korea to commit heinous crimes.

The veteran detective Seo Do-cheol and his team at Major Crimes, relentless in their pursuit of criminals, join forces with rookie cop Park Sun-woo to track down a serial killer who has plunged the nation into turmoil.

Undercover Las Vegas police officer Vincent Downs, who has a lot of enemies, is caught in a high stakes web of corrupt cops and the mob-controlled casino underground. When a heist goes wrong, a crew of homicidal gangsters kidnap Downs’ teenage son T. In one sleepless night, Downs will have to rescue his son, evade an internal affairs investigation, and bring the kidnappers to justice.

The 'Beast Cop' Ma Seok-do heads to a foreign country to extradite a suspect, but soon after his arrival, he discovers additional murder cases and hears about a vicious killer who has been committing crimes against tourists for several years.

A young detective seeks the help of a discharged police officer, giving him the chance to reclaim his old life in exchange for solving a bank raid case.

Many years ago Mr. Six was a notorious gangster. That was back when there was still such a thing as honour among thieves, when criminals earned respect and maintained principles. These days Mr. Six is all but forgotten, a living relic residing in a narrow alley. One day Six's son, Xiaobo, is abducted by some spoiled punks after he scratches their precious Ferrari. Mr. Six realizes that he must do whatever it takes to get his son back — even if that means returning to the life he thought he had left behind.

Set in China's underworld, this tale of love and betrayal follows a dancer who fired a gun to protect her mobster boyfriend during a fight. On release from prison 5 years later, she sets out to find him.

The Hong Kong police is hunting a counterfeiting gang led by a mastermind code-named "Painter" . The gang possesses exceptional counterfeiting skills which makes it difficult to distinguish the authenticity of its counterfeit currency. The scope of their criminal activities extends globally and greatly attracts the attention of the police. In order to crack the true identity of "Painter", the police recruits a painter named Lee Man to assist in solving the case.