I blinked as I regained consciousness. My head throbbed with a ferocious pain. I tried to recall what had happened, but my memory was foggy. Then, as my eyes adjusted to the dimly lit room, I saw it: a bloody knife clutched in my hand.

My heart pounded with fear as I stumbled to my feet, trying to make sense of the situation. Had I killed someone? Had someone framed me? The walls of the room were barren and peeling, with a single window covered by thick curtains. There was no one else in sight.

As I stumbled towards the door,...