Suddenly Susan is an American television sitcom. Shields plays Susan Keane, a glamorous San Francisco magazine writer who begins to adjust to being single, and who learns to be independent-minded, after being taken care of all her life.

Harry Valentini and Moe Dickstein are both errand boys for the Mob. When they lose $250,000, they are set up to kill each other. But they run off to Atlantic City and comedy follows.