The clock struck midnight as rain battered the old mansion. Detective Harris entered, taking note of the chilling, eerie silence. A scream pierced through, echoing down the dimly lit hallway. In the grand parlor, a lifeless body lay on display. Guests whispered nervously, eyes darting around the opulent, shadowy room. The flickering chandelier cast strange, ominous shapes on the walls. On the mantelpiece, a cryptic note awaited its grim discovery. The pianist abruptly stopped, his fingers trembling from hidden fear. Detective Harris knelt beside the body, examining clues, seeking truth. Dark secrets lingered, entwined within each guest's shadowy, mysterious past.