Concrete Room

The concrete room is a location part of the Never-ending hallway. It is a room where the protagonist starts in P.T..

P.T.
In the beginning, the protagonist gets up from the floor discovering that he's in the empty room with nothing in there but a bag placed on the table. From every walls in this room are label line markings.

Trivia

 * Lisa can appear and attack the player in this room.
 * It is possible that the door to the hallway will be locked, an early sign to a possible attack by Lisa.
 * It is possible to get the phone call while staying in the concrete room.