The lawyer is visiting a prison to meet with a violent criminal who has been condemned to death. During the visit, things turn bad, there is a riot where prisoners escape and the criminal escapes taking a lawyer hostage.

• Gaumont International
• Pierre Richard
• Victor Lanoux
• Raymond Bussières
• Jean-Pierre Darras
• Yvonne Gaudeau
• Jacques Frantz
• Claude Brosset
• Blanche Ravalec