The trawler Marie-Morgane sinks suddenly and inexplicably with all its crew, including Captain Lenormand and his son. When Nolwenn Lenormand hears the news she's convinced that a submarine on maneuvers must have been responsible.

• Barbara Schulz
• Arié Elmaleh
• Anne-Hélène Orvelin
• Stéphan Wojtowicz
• Virginie Hocq
• François Loriquet
• Louis Duneton
• Oumar Diaw