The old mansion loomed ominously against the stormy night sky. Detective Sarah Mills pulled up, her headlights cutting the darkness. She stepped out, raindrops pelting her trench coat and fedora. A scream pierced the air, sending chills down her spine. Sarah rushed towards the house, hand instinctively reaching for her gun. The front door creaked open, revealing a dimly lit foyer. A trail of blood led upstairs, glistening in the moonlight. She ascended cautiously, her footsteps muffled by the plush carpet. At the top, a body lay motionless in a pool of crimson. Sarah knelt down, examining the corpse with a trained eye.