Mustapha, a cab driver in Paris, charges a customer in a hurry, without realizing that he is in a hurry to escape his pursuers after robbing a jewelry store. The next day, reading the newspapers, Mustapha becomes aware of the role he has played in this affair, and would gladly assist the police if a fortuitous incident didn't make him fear the criminals' vengeance. It's a cruel dilemma in which he is both suspected by some and threatened by others. Weak but honest, he manages to get out of this predicament at the risk of his life!
Hélène and Aldo Giovanni are a circus trapeze double act and a couple. Aldo is temporarily replaced by former-partner Alexandre when the former is injured. The two get into a fight and the following day Alexandre is discovered dead. Hélène suspects her husband is responsible for the murder.
Lovers since childhood, Sylvain and Angelina do not see their lives separated from each other. However, Sylvain is sent to war and the young woman desperately awaits his return. Years pass and the latter is forced by her father to marry Jean-Marie, a man she does not love. One day, while Angelica and her family are climbing in the Alps, an avalanche sweeps them away. Safe and sound, she comes face to face with her childhood sweetheart, Sylvain.