In Shangai, the "Green Dragon" threatens to kill Herbert Aboody, a rich exporter, unless he pays him 50,000 dollars. One of Aboody's secretaries calls inspector Wens for help. An amazing fact occurs, Wens kills Aboody and then disappears. What is the key to this mystery?
Hélène Perdrière
Paul Bernard
Maurice Teynac
Pierre Jourdan
Stanislas-André Steeman
Gilberte Clair
Krisha Duchesne
Ky Duyen
Andrews Engelmann
Robert Lussac
Lonne Voo
Georgette Anys
Luong Van Yen
Reggie Nalder