Lucie Vallat

Inspector Maigret investigates the mysterious murder of a Dutch diamond dealer, found dead in a stolen car. The car belongs to an insurance agent, Michonnet, and has been abandoned in the garage belonging to Carl Andersen.

Inspector Maigret investigates the mysterious murder of a Dutch diamond dealer, found dead in a stolen car. The car belongs to an insurance agent, Michonnet, and has been abandoned in the garage belonging to Carl Andersen.

A banker threatened by gangsters is replaced by a tramp who is his perfect double. The gangsters arrest the fake banker and take him for a madman.