One New York Night (1935)

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.