The Shadow (1937) (The Circus Shadow) Rita Hayworth, Charles Quigley, Marc Lawrence

Upon the death of her father, Mary Gillespie (Rita Hayworth) carries on his footsteps, taking over the running of his circus. The performers rally behind Mary except for the show's star, Senor Martinet (Donald Kirke): the late Colonel Gillespie owed him a debt of $60,000 that he now demands be paid. The next day, Martinet is murdered during his act by a poisoned dart and each of the circus members is a suspect.