André Laurent, the captain of a tugboat, married Yvonne ten years ago. She has a heart disease but does not want to tell him. She dreams he quits the job for they can live quietly. One night, during a sea rescue, he meets Catherine. She wants to leave her husband, the captain of the rescued ship. She is a beautiful and unusual woman.—Yepok
The captain of the tugboat Cyclone, André Laurent, rushes off to save the Mirva. He abandons his sick wife Yvonne and the couple celebrating their marriage. In the early morning, the Cyclone tugs the Mirva ashore with Catherine aboard.