It is 1936 and gangland capo Sonny Tarrant has a thorny problem to sort out. With his partner 'Manny' Manders, Tarrant has been running a successful money laundering operation. But this scheme is threatened by three small-time thieves thinking big . . .For would-be gangsters Sandboy, McGouran and Gillis have carried out a violent raid on the premises of furrier Pelly Pender. But Pender insists to the police that no attack took place, for he knows the trio will face a different justice - in which the law plays no part.Sandboy, by day a cinema projectionist, soon finds himself caught in a nightmare world in which Tarrant manipulates his victims with the deftness of a flick-knife.His last hope is Yvonne Manders, once the stage-dancer 'Lady Blue' . . .