Roger Laroque, an honest industrialist, is the victim of a criminal machination by Julia de Noirville, his possessive and jealous mistress allied to the perfidious Paul Luversan, meant to make Roger take responsibility for the crime he himself committed. Laroque is sent to prison, from where he escapes by sea. When he is reported missing, it looks like he drowned. But he reappears with revenge as his objective. He also wants his daughter Suzanne back. For his wife, it's too late, she died of grief.

Roger Laroque, par ailleurs honnête homme et bon père de famille, a une maîtresse, Julia de Noirville. Celle-ci, avec l'aide de Paul Luversan, monte une machination contre lui et le fait accuser d'un crime qu'il n'a pas commis. Envoyé au bagne, Laroque s'en évade quelques années plus tard, et s'enfuit au Canada, où il fait fortune…