The rain poured heavily on the deserted mansion, shadows dancing behind the cracked stained-glass windows silently threatening secrets buried deep inside. A distant thunderclap echoed ominously as Detective Harper arrived, clutching a battered notebook, determined to uncover what darkness hid beneath elegant veneer. Inside, flickering candlelight revealed a blood-stained letter opener, glinting horrifyingly near the lifeless body sprawled across a velvet carpet. The victim, renowned art collector Mr. Langston, had his eyes wide open, a look of terror frozen forever on his blood-smeared face. Whispers of hidden debts and jealous rivals filled the air as Harper carefully examined the chilling scene, trying to piece together motives clearly.