An insane surgeon's obsession with an actress leads him to replace her wounded pianist husband's hands with the hands of a knife murderer--hands which still have the urge to throw knives.
Foxhall Ridgeway, arriving in New York City from the West, stumbles onto a murder in the hotel room next to his. He gets tangled up into the affair, and with the aid of Phoebe, the hotel telephone operator who takes a liking to him, and also Countess Louise Browssiloff, who innocently had left some personal belongings in the murdered man's room and is most anxious to recover the incriminating evidence, Foxhall solves the murder mystery.
Produtor da Broadway treina uma ex-modelo de lingerie, para se tornar uma grande atriz, quando ela consegue eles começam um relacionamento. Mas o ciúmes dele acaba por desgastar a relação e ela decide ir embora pra Hollywood. Agora ela se tornou uma grande estrela de Hollywood e ele precisa da ajuda dela para retornar sua carreira em declínio.
