Murder in 405 (1980)

A private investigator is forced into a dangerous alliance with a killer in order to uncover a quiet town’s grisly criminal underbelly and clear the name of her mentor, who is implicated in the crimes.

Yu, a self-assured factory guard, fancies himself a detective and begins poking his nose into a murder investigation.

Wang Shicong, chairman of the famous group, died tragically at home. The prosecutor Liang Wenchao and his wife, Abang, learned during the investigation that the deceased’s long-term partner, Dr. Wan, and his ex-wife’s Son Wang Tianyou, young newlywed wife Li Yan, and even the dead ex-wife, each suspect has an intricate connection. As more clues gradually surfaced, they gradually discovered the rich. The amazing secret hidden behind the murder...

Claiming that he doesn't know his own past, a rich man enlists an ex-con with an odd bit of detective work. Gregory Arkadin says he can't remember anything before the late 1920s, and convict Guy Van Stratten is happy to take the job of exploring his new acquaintance's life story. Guy's research turns up stunning details about his employer's past, and as his work seems linked to untimely deaths, the mystery surrounding Mr. Arkadin deepens.

A murder case reveals unknown secrets of the killer and the victim.

Mysterious Orfamay Quest hires Los Angeles private investigator Philip Marlowe to find her missing brother. Though the job seems simple enough, it leads Marlowe into the underbelly of the city, turning up leads who are murdered with ice picks, exotic dancers, blackmailed television stars, and self-preserving gangsters. Soon, Marlowe's life is on the line right along with his case.

A forensic psychologist must determine if a minor should be charged with murder.

An idiosyncratic FBI agent investigates the murder of a young woman in the even more idiosyncratic town of Twin Peaks. (This standalone version of the series pilot was produced for the European VHS market and has an alternate, closed ending.)

Jane Marple solves the mystery when a local woman is poisoned and a visiting movie star seems to have been the intended victim.

He Fei's wife, Li Muzi, disappears during their anniversary trip. When she reappears, he insists that she is not his wife. As Chen Mai, a top lawyer gets involved in this bizarre case, more mysteries start to emerge.