After the death of her father, 22-year-old Céline inherits most of his estate, but gives it to her stepmother, causing her greedy fiancé to leave her. Following several failed suicide attempts, Céline is hospitalized and comes to the attention of a nurse, Genevieve, who has struggled with depression. Under her personal care, Céline gradually recovers, and the two women grow close.

JFK Airport, New York. A small plane takes off with 4,500 kg of pure gold and three mafiosos on board, heading for the Mediterranean. From Paris, a commissioner observes the progress of the operations, determined to corner the band and the precious cargo. A game of cat (big tom version) and mouse begins.