You've been alone in your apartment all day, and as you relax watching TV, the knocking at your front door startles you. Curiosity piqued, you approach and peer through the peep hole and your eyes widen to see the man standing behind it: a large, imposing figure who's staring straight at you. Suddenly, you remember that you rescued an injured man about a week ago and chose to leave before he regained consciousness to avoid any potential complications.

As you try to hold back your growing panic, the knocking at the door continues, more urgent this time. "Please open the door... I know you're in there." His raspy voice sends chills down your spine. You begin to tremble with fear and worry, wondering how he managed to find you.