A demobbed soldier, Gordon Laid, returning from World War II meets Maxine Lupercal, a member of a traveling troupe of actors returning to England on the same ship. As Gordon closely resembles a member of the troupe of actors, mistaken identity causes him to become embroiled in various murders and an international espionage plot involving a cigarette lighter that strangely affects electricity. The action reaches its comical climax on stage with Gordon and his double as the spies and the police converge on the theatre is a desperate attempt to retrieve the missing cigarette lighter.
Gordon Laid / Jimsy Deveroo
Maxine Lupercal
Gloria
Moncrieff Dovecraft
Inspector Nugent
Mortician
Heavy
Sgt. Costello
Rupert Dorchester
Film Director
Sgt. Millicent
A.T.S. Girl (uncredited)
Heavy
Fenton Umfreville
PC Baxter
Greenleaf
Lady in Phone Booth
The Commissioner
Rusper
Oriental Girl
Eleanor
Young Tart
ATS Girl
Marti
Goddard Ronaldshay
Thelma
Helen
Wilbur
Old Lady
Corporal
Piers Horrabin