Violent Playground is a 1958 British drama about a teenaged delinquent and the dangers of modern society. Sergeant Truman (Stanley Baker) is a Juvenile Liaison Officer: a policeman who works primarily to discourage underage offenders from becoming career criminals. When visiting the Murphy household to investigate a young gang leader named Johnnie (David McCallum), he finds clues linking Johnnie to the elusive "Firefly" arsonist. Complicating matters, Truman also manages to fall for the boy's sister, Catherine (Anne Heywood). All the while, Johnnie's behavior spirals downward from bad to worse. At the film's moral center is an unnamed local priest (Peter Cushing) doing his best to heal the community during difficult times. Directed by Basil Dearden in the vein of other notable 50's films about delinquents, Violent Playground offers pointed social commentary. The stories of these characters highlight dangerous influences, including rock n' roll, and the consequent decline of civic values among the youth.