Joseph DeVillard

Private Investigator Terry Moran, who is in love with Nora O'Brien the daughter of Police Detective Tim O'Brien, is hired by Mrs. Hamilton to solve the murder of her husband, a fur dealer... (imdb)

Professor Pierre Ginsberg, extraordinary French instructor, is sailing with a wealthy couple as their instructor and guide in France. But when his client tries out his French in the dining room and everything is wrong, he fires Ginsberg. Two gangster-type Americans ask Ginsbeg to order them a meal, and advise him to get a girl for the ship's ball that night. Ginsberg, of course, picks the wife of one of them. (imdb)