Kedok Ketawa ( [ kəˈdɔʔ kəˈtawa ] ; Indonesian for The Laughing Mask , also known by the Dutch title Het Lachende Masker ) is a 1940 action film from the Dutch East Indies ( now Indonesia ) . Union Films ' first production , it was directed by Jo An Djan . Starring Basoeki Resobowo , Fatimah , and Oedjang , the film follow a young couple who fight off criminals with the help of a masked man .