Strange Noises in the Strange House: Who Is Dancing Upstairs?

Rumors spread among the neighbors that Lin Mo was dancing late at night and making noise. Neighbors came to check and found out that Lin Mo had both legs amputated and was unable to walk normally. When the atmosphere in the house was quiet, there was an inexplicable noise coming from upstairs. Everyone looked around and found only a black cat wearing claw gloves, so they did not continue to investigate further. A few days later, the strange sound came again. Lin Mo was confused, so he controlled a drone to explore the house upstairs, and unexpectedly found a black coffin hidden in the house. Many abnormal signs are related to each other. Shrouded in layers of fog, a secret past that has been deliberately concealed is slowly revealing its truth.