

Hélène and Aldo Giovanni are a circus trapeze double act and a couple. Aldo is temporarily replaced by former-partner Alexandre when the former is injured. The two get into a fight and the following day Alexandre is discovered dead. Hélène suspects her husband is responsible for the murder.
Jean Delannoy
L'avocat général

Olivier Hussenot
Louis Bernardin

Jacques Castelot
Me Ritter

Jean Toulout
Le président des assises

Dora Doll
L'entraîneuse

Raphaël Patorni
Bertrand