Eight people are invited by an unsigned telegram to a penthouse apartment, where they find themselves locked in and greeted by their unknown host's voice via the radio, who explains that before the night is over each one will be die unless they manage to outwit the ninth guest, Death.
as Jim Daley
as Jean Trent
as Henry Abbott
as Tim Cronin
as Jason Osgood
as William Jones
as Sylvia Inglesby
as Dr. Murray Reid
as Margaret Chisholm
as Hawkins
as Jean's Maid (Uncredited)
as Osgood's Secretary (Uncredited)
as First Telegraph Office Worker (Uncredited)
as Office Worker (Uncredited)
as Voice of the Host (Uncredited)
as Burke (Uncredited)