A French diplomat who's recovered from amnesia is blackmailed over crimes he can't remember.

Harper is a cynical private eye in the best tradition of Bogart. He even has Bogie's Baby hiring him to find her missing husband, getting involved along the way with an assortment of unsavory characters and an illegal-alien smuggling ring.

In a fantastical 1940s where magic is used by everyone, a hard-boiled detective investigates the theft of a mystical tome.

Three detectives in the corrupt and brutal L.A. police force of the 1950s use differing methods to uncover a conspiracy behind the shotgun slayings of the patrons at an all-night diner.

Lila, a famous retired singer, loses her memory after suffering an accident, just as she planned her return to the stage.

A beautiful showgirl, name "the Canary" is a scheming nightclub singer. Blackmailing is her game and with that she ends up dead. But who killed "the Canary". All the suspects knew and were used by her and everyone had a motive to see her dead. The only witness to the crime has also been 'rubbed out'. Only one man, the keen, fascinating, debonair detective Philo Vance, would be able to figure out who is the killer.

A secretary (Gloria Stuart) solves a murder for her boyfriend (Michael Whalen) in the district attorney's office.

Philo Vance investigates when a murderer preys upon members of a wealthy family on New York's Upper East Side.

A diamond is stolen at a houseboat party given by the district attorney. He gives the thief a chance to return it by putting an empty box on a table and turning out the lights. When the lights are turned back on the box is gone, and the district attorney has a knife in his back and is quite dead. The police and the coroner arrive. There are several attempts made on the life of the coroner. Ruth Whitman is found hiding in a grandfather-clock, holding the gem box. She claims the box was pushed into her hands and she was pushed into the clock. The district attorney's butler/valet tells the coroner he saw who killed his employer and a few minutes later he is also murdered. The mystery deepens.

An investigator for the District Attorney's office quits to open his own detective agency. However, business is so bad that he finally decides to give it up and go back to his old job. As his wife is at his office closing up, a wealthy society matron walks in with a case: she wants to know if her husband is having an affair with his ex-girlfriend, who is now married. The wife accepts what looks to be an easy case, figuring than she can then persuade her husband to re-start the agency. However, when the client's husband is found murdered, she decides to investigate the murder herself. Her husband has also been assigned by the D.A. to investigate the murder, and he doesn't know that his wife is also on the case. Complications ensue.

A lawyer is framed for the murder of a young party girl and tries to clear his name.

A New York doctor saves a chorus girl from a window ledge, twice, and rounds up racketeers.