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After knifing a matron and setting fire to the girls' quarters of a detention home, young Jody Dvorak breaks into the house of political aspirant David Stratton, who is out for the evening while his estranged wife is in San Francisco.  When David returns home and finds Jody there, she resorts to lies, threats, and deceptions to prevent him from calling the police.  He gives her money for new clothes and a ticket to Los Angeles, but she returns and threatens to ruin his political career if he doesn't allow three of her friends to stay at the house.

During a wild drinking party, a delinquent named Ron is slashed with a razor by Buck, a muscular beach bum, and Jody forces David to drive the injured man to a doctor in Tijuana.  Jody quarrels with Buck, dumps him from the car, drops off Ron, and then makes David rent a motel room so that she can hide from her two desperate companions.

David runs into some politically influential acquaintances but manages to avoid arousing their suspicions.  Before he can get away from the motel, however, Buck and Ron reappear, and the former beats him into unconsciousness.  Jody gets David into the car and races off as the two bullies take pursuit.  Their cars crash and burst into flames, taking the lives of the three young people.

While recuperating in a hospital, David learns that Jody's deathbed statement did not implicate him in any way.