In New York, a courageous detective named Alex is injured by a gangster who calls himself the Man With the Broken Face. Stuck in a hospital, Alex meets Leo, a bedridden 11-year-old who has the ability to leave his body and float around as an apparition. Like a ghost, invisible to all, he flies away and passes through walls. When the disfigured criminal threatens to attack the city's infrastructure, Leo springs into action to help the lawman foil his evil plan.