A shadow crept across the room as the lights flickered. A figure loomed in the doorway, cloaked in darkness. Unseen but felt, a presence moved through the air. A floorboard creaked, a murmur echoed, a strand of tension crawled into the room. A tension building, a breath held, a moment's pause before chaos erupted. A scream pierced the night, a body crumpled, a pool of blood spread across the floor. And so the mystery began.