Mystère à Shanghai is a 1950 French crime film directed by Roger Blanc, produced by Hans Herwig and starring Paul Bernard, Hélène Perdrière and Maurice Teynac. It is based on the novel La Nuit du 12 au 13 by Stanislas-André Steeman. In Shanghai, a Chinese criminal organisation plans to kill Herbert Aboody if he doesn't pay them $50,000.