L'homme qui vient de la nuit (1971)

Sacha Voronine, a famous singer about to marry the top model Nathalie, is attacked by John Darow, who tries to murder him by knocking him unconscious and throwing him into the sea. Fishermen take Sacha in, but he has lost his memory and takes the name Samson. Samson’s memory begins to return when a circus passes through and he hears a tune he knows, then starts singing. Deciding to leave with the circus troupe, he eventually gets hired by a radio station director, who launches him on the air as the “unknown singer.” In the meantime, Nathalie has married John. She recognizes Sacha’s voice and wants to find him, but Sacha rejects her because he has fallen in love with Maria. John tries once again to get rid of Sacha, then attempts to kidnap Maria. After a wild chase, Sacha triumphs over John, who is arrested by the police.