Open All Night is a 1934 British drama film directed by George Pearson and starring Frank Vosper, Margaret Vines, Gillian Lind, Geraldine Fitzgerald and Michael Shepley. It was made at Twickenham Studios in London. The film's sets were designed by the art director James Carter. The film was produced as a quota quickie by Julius Hagen for distribution by RKO Pictures. It was later released in the United States under the alternative title Murder by Appointment.