Darkness enveloped the old mansion, its secrets safely hidden inside. Silence was broken by a muffled scream, echoing through halls. A light flickered on upstairs as footsteps raced to the source. Detective Samantha arrived, her keen eyes scanning the crime scene. Victim lay sprawled on the floor, face frozen in fear. Scattered papers and a broken vase hinted at a struggle. No signs of forced entry suggested the killer knew the house. A mysterious shadowy figure darted from the room and vanished. Samantha's instincts tingled suspecting a twisted web of deceit. Motive and opportunity remained elusive as the investigation began.