Neglected by her husband during the pre-Christmas rush, Mrs. Claus takes the reindeer and sleigh out for a drive, only to end up stranded in the neighborhood of Manhattan's Lower East Side.

After young playwright, David Shayne obtains funding for his play from gangster Nick Valenti, Nick's girlfriend Olive miraculously lands the role of a psychiatrist—but not only is she a bimbo who could never pass for a psychiatrist—she's a dreadful actress. David puts up with the leading man who is a compulsive eater, the grand dame who wants her part jazzed up, and Olive's interfering hitman/bodyguard—but, eventually he must decide whether art or life is more important.

A mentally challenged girl proves herself to be every bit as capable as her "perfect" sister when she moves into an apartment and begins going to college.