Chen Qiye, a night shift worker at a funeral home, accidentally inherited the "Yin Contract Compass" and became a contract debtor who traveled between Yin and Yang. When the ghost in the haunted house complained with blood and tears, the century-old corpse held the land deed and demanded his life, and the last subway train left Huangquan Station - he bit his fingertips and pressed the contract: "All debts are paid in full? No, I specialize in saving deadbeats!"