Glen and his boyfriend Aiden live a mostly peaceful life in New York City, but then Aiden's abusive ex, Stephan, comes back into the picture. After an odd encounter with a Catholic priest, Glen begins acting strangely.
He attributes it to stress at first, but then things get even worse. Glen experiences mental blackouts, and when he comes to, he finds he has been up to no good. A stolen wallet here, a violent loss of temper there, and an unsettling trend of nightmares plague him.
Glen prays he isn't losing his mind and hopes he can regain control of himself, but when Stephan slips back into old habits and goes after Aiden, the darkness in Glen's soul takes over again. Can Glen subdue his inner demons before they consume him, or is it already too late?