Americo Monk, a street-haunting aficionado of graffiti, is frantically trying to return home to the makeshift harbor community where he lives with his girlfriend, Karmann. But this is during the Watts Riots, and although his status as a chronicler of all things underground garners him free passage through the territories fiercely controlled by gangs, his trek is nevertheless diverted. Embarking on an exhilarating, dangerous and at times paranormal journey, Monk crosses paths with a dizzying array of representatives from Los Angeles subcultures, including Chinese gangsters, graffiti bombers, witches, the Nation of Islam leader Elijah Muhammad, and others.