On the first seven nights, the sound of my late grandfather's knocking came from the dry well. When villagers dug a well, they discovered the body of a child that looked exactly like Li An. The village elder collapsed and revealed a century-old bloody secret - offering a child once every three years will ensure the village's prosperity for a century. The corpse grinned: "Now it's your turn." The curse restarted and hell opened. Before he is sacrificed, Li An must uncover the mystery of the ancient well and break the blood contract that has been circulating for hundreds of years...