Meet Jim Douglas, a down-on-his-luck race car driver who lives in an old run-down fire house in San Francisco with his friend Tennessee Steinmetz, a occasional drunk mechanic. One day, Jim goes to a luxury car dealer and sees a strange Volkswagen Beetle with a unusual problem: it tends to drive on its own, as if it were sentient. The little Bug follows Jim home but Jim believes that the owner of the car dealership, Peter Thorndyke, is playing a trick on him. Jim decides to try out the car, and...