约翰·罗迪的生活很快乐很充实,他和妻子两人也非常相爱。然而他磕了海洛因,变得有些疯狂,有些邪恶。他脑子里闪现了三个平行的生活场景,每个场景都代表着一个不同的世界,善良的、邪恶的,快乐的……John Rotit is a happy, content man with a loving wife. Hours later, he's a rock star shooting up heroin. And after that...he's something far more sinister. John unwillingly flashes between three parallel lives in which he knowingly exists in each. He has no clue how or why this phenomenon is occurring, only that he wants it to stop. John's judgment becomes clouded as he'll do anything he can to end his flashes and remain in the one life where he's truly happy.