A police deputy in Paris have a lead on an international gang into trafficking. The police dresses as a steward to tail the head of the gang to Marseille. On the ship he meets with Madeleine. A girl controlled by the traffickers.
| Actor | Role |
|---|---|
 Harry PielPolice deputy | Police deputy |
 Bruno ZienerDupont | Dupont |
 Albert PauligRené Duval | René Duval |
 Aruth WartanJosé Servantes | José Servantes |
| DDary HolmMadeleine | Madeleine |
 Edith MeinhardMado | Mado |