The newspaper delivery man Zhong Qiang went to deliver the newspaper to the house at 419 Fuguo Road and discovered that it was an uninhabited abandoned house. At midnight, he had a video chat with someone online named "Midnight Punctual Online", but in the video window he saw a scary picture of a baby. "Midnight Punctual Online" asked him to meet him at 419 Fuguo Road. Zhongqiang rushed to the deserted house, but saw a bloody corpse hanging from a tree. The victim had been beheaded and his genitals cut off. The massacre had begun! Their bodies were all the same... At that moment, Mingliang's mother, the next target of the evil spirit, revealed the origin of the massacre: the separation surgery of a Siamese twin. They were Siamese twins who shared a heart and genitals. Only by giving up one could the other be saved. Zhongqiang was the baby chosen to survive...