It was during one of his missions in Norway that Antoine learned of his wife's death. He leaves his experimental submarine and returns to Paris. Helene was found in the Seine and had taken barbiturates. Even though he had not been with Hélène for six years, he knew her well enough to believe that she was incapable of committing suicide. So who and why?

Jacques Bonnaffé
Antoine

Clémentine Célarié
Camille

Wladimir Yordanoff
Marc Allighieri

Philippe Noiret
Pierre Franchin, the painter

François Berléand
Zaccharia Pasdeloup

Jean-Louis Richard
Stirner

Claire Nebout
Marie

Michel Berto
Torti

Marc de Jonge
Lamour

Nicole Desailly

Philippe Baronnet

Dominique Besnehard

Sophie Blondy

Olivia Brunaux

Brigitte Chamarande