Meet Joel Goodson, a bright, college-bound 17-year-old who is also a devout, trustworthy son. But when his parents depart, leaving him home alone in the affluent suburbs of Chicago with a Porsche at his disposal, he immediately decides that he has been nice for too long and that it is time to have fun. Joel has to raise some money in a dangerous method after an unpleasant occurrence involving a Porsche.