Three gangsters on the run break into a rehabilitation center for delinquent teenagers run by the couple Roger and Irène. The residents are divided over how to deal with the three bad guys, who want to take over the home.

Paul Martin is the subservient brown-nosing youngster who needs quick advancement up the hierarchy to pay for the modern lifestyle he is buying on credit. Seeing that marrying his immediate superior's daughter will not get him the results he wants, he begins plotting the demise of the head of the company. The company itself specializes in holiday travel and unscrupulously brutalizes its customers for maximum profit, spending more thought on publicity gimmicks than customer service...