After an heiress makes her will out to the leader of a bogus religious cult and mysteriously falls to her death, Brown finds that he is the charlatan's alibi.
Kenneth More ... Father Brown Dennis Burgess ... Hercule Flambeau Ronald Pickup ... Kalon Alison Key ... Pauline Stacey Emily Richard ... Joan Stacey Rosamund Greenwood ... Miss Ammerley Dudley Jones ... Thurston Christopher Good ... Gerald Lloyd Oliver Ford Davies ... Det. Insp. Corliss (as Oliver Ford-Davies) Ken Halliwell ... Police Constable