New York, early 1960s. Against the backdrop of a vibrant music scene and tumultuous cultural upheaval, an enigmatic 19-year-old from Minnesota arrives in the West Village with his guitar and revolutionary talent, destined to change the course of American music.

On Christmas Eve, a little girl named Marie falls asleep and dreams herself into a fantastic world in which her toys become larger than life. She meets up with the Nutcracker Prince who takes her on a journey to his kingdom and defends her from the Mouse King.

An anxious New York law school dropout stumbles into a job babysitting his psychiatrist's three granddaughters and falls for the girls' mother, an actress in a rocky marriage.