Escapee (2011)

During a clinical observation at a nearby psychiatric facility, bright psychology student Abby Jones experiences a disquieting interaction with Harmon Porter, a volatile patient harboring dangerous tendencies. Unbeknownst to her, the encounter ignites something dormant within Porter. Returning to the familiar comfort of her shared apartment and the routine of late-night study sessions with her roommates, Abby remains oblivious to the sinister force she has unwittingly unleashed. She's about to discover that some doors, once opened, can never truly be closed, and the darkness has followed her home.