James Belushi and Charles Grodin team up for this variation on the Prince and the Pauper. Belushi plays Jimmy Dworski, a convicted car thief, serving time in a minimum security prison. But when Jimmy wins a pair of tickets to the World Series from a radio call-in show, he can't resist walking out of jail, particularly when the warden won't even let the inmates watch the series on television. Grodin plays rich workaholic Spencer Barnes, who, when his wife walks out on him right before a long-planned vacation, leaves his datebook in an airport telephone booth. Happening upon Spencer's datebook is Jimmy, who simply intends to return the datebook to Spencer for a 1,000-dollar reward. But when he finds the datebook contains his credit cards, Jimmy assumes Spencer's identity, living the good life and dating the boss's daughter, while making his way to Malibu to return the property to Spencer.