Title: The Madonna's Secret Summary: The sister of a murdered model poses for the same artist to try to catch her killer. Directed by: Wilhelm Thiele Actors: Francis Lederer, Gail Patrick, Ann Rutherford Production Company: Republic Pictures (I) Release Date: 16 February 1946 (USA) Aspect Ratio: 1.37 : 1 The sister of a murdered model poses for the same artist to try to catch her killer.