Rain pitter-pattered on the cobblestone streets. Gaslights flickered in the damp night air. A solitary figure moved through the mist. He approached a grand, old mansion. Its windows were dark, uninviting. He hesitated, then pushed open the gate. The hinges creaked eerily in the silence. He walked up the winding path. The mansion loomed larger with each step. He reached for the iron door knocker. Suddenly, he froze. A chilling scream echoed inside. He pushed the door open slowly. It swung back, revealing darkness. He stepped into the unknown, heart pounding. A murder mystery unfolded.