Mike, a sensitive narcoleptic who dreams of the mother who abandoned him, and Scott, the rebellious son of a prominent family and the object of Mike's desire, embark on a quest from the grungy streets of Portland to the open highways of the Pacific Northwest, in search of an elusive place called home.

The story takes place on Christmas Eve in Shinjuku, Tokyo. Middle-aged has-been Gin, aging transvestite Hana, and teenage runaway Miyuki are homeless friends who have formed a makeshift family structure bond. That bond is tested when they find an abandoned baby while searching for food in a trash dumpster. They try to care for the infant themselves, and travel throughout the city in search of the baby's parents.