Neighbors have been reporting strange sounds coming from an apartment building that is supposed to be empty. Tapping from inside the walls. Footsteps. Faint whispers. The complaints have grown frequent enough that a security officer is sent to investigate. He learns from the neighbors that the building was abandoned after a tragic incident — the details of which no one can fully agree on. No one is willing to enter the building themselves. The officer goes in alone to find out what is actually inside.