Caprice.

A young couple in New York locks themselves into a kind of childlike romantic fantasy, with the city as their playground. When reality begins slipping inside their world, the relationship begins to sour, until it collapses under its own weight. For the remainder of the film, the young man attempts to recreate this type of codependent fantasy existence with whomever he can, with increasingly perverse & disturbing results. In a search for love & happiness, he finds only sickness & destruction.