Prosecutor Vadim, who has an uneasy relationship with his glamorous wife Chanéac, vanishes at the time a psycho is offing club girls to the strains of the "Tu es si jolie ce soir" song.
Deborah
Joe
Pierre
Barbara
Steve
Erwan
Agent Willy
Artie Lieber
Sally Vattès
Mme Dillman
Tonia Lee
Jeanne
Emilie
Agent immobilier
Patron Blue Note
Inspecteur Couque
Linda
Belle
Hank
Inspecteur Dulin (uncredited)
(uncredited)
(uncredited)