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?

Genres

Cast

Hélène Perdrière

Floriane Aboody

Paul Bernard

Herbert Aboody

Maurice Teynac

Inspector Wens

Ky Duyen

Commissioner Whu

Andrews Engelmann

Zetskaïa

Georgette Anys

(uncredited)

Reggie Nalder

Chinese taxi driver (uncredited)