Trying to overcome depression and PTSD, Andrea Yates, a young woman in her mid-twenties, relocates to a new town and finds a job as an office assistant for a local artist - John R. Gacy. She is told not to wander anywhere outside of her office and especially not to go downstairs for any reason. Lured by strange sounds, she ignores his request and descends to the forbidden room. What she discovers shakes her to the core and further accelerates her paranoia, which consequently ends in a tragedy.