For the faint of heart: do not read before bed. Traditional Chinese supernatural horror stories and secrets of the Puan Sect. Hu Daguang, a carpenter, is actually an heir to the Puan Sect. He went into hiding after his wife and child were brutally killed. Strange events plague a mountain village during the Republic of China era, and the evil cult known as the Netherworld Hall has returned, hoping to open the gates to the underworld and wreak havoc upon the living. Forced to take up his ritual implements again, he joins forces with his girlfriend, Zhang Wannuo, a Western-trained doctor, to uncover the truth behind a plague from sixty years ago and fight an evil god. A carpenter’s inked line binds corpses, while a Lu Ban ruler measures souls. A life-and-death struggle over a mysterious “key” unfolds amid shadows of ghosts…