Seven Keys(1961)

movie - first aired/released 1961-02-01 - audience 6.9

Convict Russell is bequeathed a set of seven keys by a fellow prisoner. After discovering that the deceased embezzled an unrecovered £20,000, Russell sets out to find the cash after finishing his sentence. However, he must first solve the mystery of which locks the keys fit, and run the gauntlet of the police and gangsters who are after him and the money.