In this game the player can choose his own path. He/She can be the killer or just one of the guest who try to survive (hiding, running or fighting the killer if he know who he/she are). 
Both ways has difficulties and so the player have to be creative, smart and plans his moves (or being good at improvisations) to achieve the victory.

The door of the apartment are shutted, no one can leave. The phones in the entire building are jammed so they can't call for help.