Session 9 (2001)
In the office building, there is an area where an empty wheelchair facing an open door can be seen behind a large plate of glass. This is an homage to "Session 9" which features a similar shot of an empty wheelchair in the distance as a recurring scene.
Another often stated source of inspiration.
DVD in store
Was said to be one of the many inspirations for the game
DVD on the shelf.
Plot is a reference to Session 9 (2001).
DVD/Blu-Ray on screen