The Further Adventures of Ozzie and Harold

Plot:

When Ozzie Colt's wacky friend is present when a crime is committed, Colt tries to help him. But when the men try to grab him, they strike him in the head and Ozzie changes and adopts a new persona, Harold Sanford who claims to be some kind of millionaire businessman. When he returns to his home, everybody thinks he was dead. Based on what Harold tells them, Colt deduces that someone tried to kill him but didn't do a good job and the trauma caused Ozzie to come out.