A group of bandits conspire to kidnap a scientist who can help them manufacture diamonds.Unbeknownst to them , the FBI is already on their case.

A ship, La Circé, has sunk and it might possibly be criminal . The vessel belongs to Storata ,who asks the insurance company for a hundred million Francs .Callaghan is working for them and he investigates on dry land and on the sea. The brilliant detective discovers that Storata has scuttled his ship himself to swindle insurance.

An aristocrat short of the readies, Gontran, is to marry a wealthy girl of common birth; but he has to get rid of his lover.

The Marquise de Saint-Ange wants to marry her niece Nicole, but the young girl, put off by the chosen suitor, flees with her friend Jacques.

A young girl marries a man she doesn't love and delights in humiliating him.