: The chapter builds on the suspicion that someone is watching the house, a feeling shared by the daughter, Jen. This sets the stage for the family's central mystery—why they feel they cannot involve the police even as their safety is threatened.

: Chapter 4 is titled The Hospital and follows previous levels set in a house, a mall, and a mineshaft.

: Players must manage resources and hide from the "Intruder" entity, which is often depicted as a shadowy figure that grows more aggressive as the chapters progress.