 Claire Olger (Patricia Hardy) is picked up hitchhiking by ladies  man Michael Greeley (John Hubbard). He makes a pass and they struggle, causing the car to crash into an oncoming truck. The truck driver is killed, and when she regains consciousness, Claire is charged with auto theft and manslaughter as the only occupant of the wrecked car. Later, Greeley turns up dead in Claire s room, and Perry Mason (Raymnd Burr) must stay one step ahead of the police to solve the mystery.