Lieutenant Varnière, responsible for discovering the cause of the death of two officers in Algeria, unmasks the assassin in the person of a Russian who lives with three women. He falls in love with one of them and runs away with her while the Russian is killed by a devoted servant.

• Jean Toulout
• Kaissa Robba
• Jean Worms
• Tahar Hannache
• Alexandre Mihalesco
• Suzanne Christy
• Jean Heuzé
• Louis Zellas