Inspector for a major insurance company, Clint de La Roche, known as "le vicomte", is enjoying a pleasant vacation on the Spanish coast with a few pretty girls and his assistant, Billette, when he is urgently called back to Paris to investigate a bank robbery. The bank manager has had the key to the security system stolen by a certain Tania. But Tania is killed in a car bomb attack. However, Clint soon discovers that behind this case lies a rivalry between the gangs of Rico Barone and Marco Demoygne, who are fighting for control of the drug market.

Kerwin Mathews
Clint de la Roche, the Viscount

Edmond O'Brien
Ricco Barone

Sylvia Sorrente
Lili Dumont

Jean Yanne
Billete

Fernando Rey
Marco Demoygne

Franco Fabrizi
Ramon

Maria Latour
Tania

Alain Saury
Vincento

Armand Mestral
Claude Peroux

Luis Dávila
Steve Heller

Álvaro de Luna
Jean

Pierre Massimi
Louis
Christian Kerville
Paul
Claude Le Lorrain
Olga Bergamonti