A series of crimes is being perpetrated around a famous singer. Strangely, during each of the crimes, the artist's voice is heard humming his favorite song. Suspicions lead to a chase through a nocturnal Paris, ending in a disused theater where the assassin has lured his final victim.
as Inspector Pascal
as Thérèse
as Marny
as Dalbret
as Eliane Roy
as Mireille
as Melor
as The hunter
as Mrs. Lalorgue
as Legal
as Bernard
as The apprentice
as Planquine
as Marcheau
as Toby
as Self
as (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)
as Louise Chabot (uncredited)
as Journalist Deval (uncredited)
