Elliot Hopper (Bill Cosby) is a workaholic widower who is about to land the deal of a lifetime at work, which he hopes will win him a promotion and a company car. After he forgets his daughter Diane's birthday, he attempts to make it up to her by promising her she can have his car when he secures the deal at work on the coming Thursday. After being persuaded to give the car to his daughter early, Elliot must hail a taxi from work, which is driven by Satanist Curtis Burch (Raynor Scheine), who drives erratically and speeds out of control.