Voici le Temps des Assassins (1957)

Synopsis
Jean Gabin stars in Voici le Temps des Assassins as Chatelin, a soft-spoken, middle-aged restauranteur. His life is unexpectedly complicated when Catherine (Daniele Delorme), the daughter of his ex-wife, pays a visit. Catherine tells Chatelin that her mother is dead, and that she's all alone in the world. The good-hearted Chatelin comes to regret his decision to allow the girl to stay when it develops that she's not only a liar, but a psychotic, who plans to murder him. Voici le Temps des Assassins was released in the US as Deadlier Than the Male. ~ Hal Erickson, All Movie Guide