Sweet, lonely Seth spends his days working in an animal shelter in a hopeless daze. But when he has a chance encounter with beautiful young waitress Holly, she awakens something within him. Obsessed, he tries everything to win her over, but time and again, she rejects him, leading him to steal her journal and make a plan to kidnap her. After Seth abducts Holly, she wakes up in a cage beneath the animal shelter, treated like the dogs living above her. But as Seth's lies begin to catch up to him, Holly toys with his emotions and his certainty about the situation falls apart, and a bloody psychological battle begins where the line between prey and predator, victim and criminal blurs, leaving a deadly trail along the way.