While on vacation, the Saint discovers a much-sought-after music box.
Hugh Sinclair
as Simon Templar
Sally Gray
as Mary Langdon
Arthur Macrae
as Monty Hayward
Cecil Parker
as Rudolph Hauser
Leueen MacGrath
as Valerie
John Warwick
as Gregory
Manning Whiley
as Marko
Felix Aylmer
as Leighton
Ivor Barnard
as Emil
Gordon McLeod
as Inspector Claud Teal
Roddy Hughes
as Valet (uncredited)
Eric Clavering
as Reporter at door (uncredited)
