Paul Flanagan has served an eight-year sentence for his part in a robbery. He has been released, unexpectedly, and renews his contact with his girl friend, Cathy, and his half-brother, Peter Babel, both of whom deserted him in his time of need. Paul Flanagan's aim is to find out the whereabouts of the money from the robbery, which his half-brother has hidden away somewhere, for fear of discovery.