An interesting tale of crime and falling on hard times. Herbert Lom plays the de Lisle acrobat twins (using the standard camera tricks) who are the star trapeze artists of the circus.
Mike Bergen (Terence de Marney) is the rather villainous circus worker who is tired of working at the circus and the de Lisles. He discovers that one of them has won the lottery and so plots a plan with Penny (Phyllis Dixie) to steal the winnings.
The tale of treachery and eventual murder is told in flashback. Lom plays a terrific dual role, giving the (completely identical) twins subtle character differences. The film is pretty low budget but makes the most of it. A moody and atmospheric film with Noirish touches.