The impoverished girl Lin Wan is unexpectedly saved from death by a sentient stone lion and discovers gold under its guidance. Wishing to become fabulously wealthy, she relies on the stone lion's help to rise to become the richest person in the capital and fulfills her promise by moving the stone lion into her residence. A mysterious old man warns her that the stone lion is a thousand-year-old evil spirit and that moving it away could bring disaster upon the entire city, but Lin Wan stubbornly refuses to listen. The stone lion reveals its true nature and coerces Lin Wan into offering a pair of children every day. Greedy for wealth and status, Lin Wan gradually becomes an accomplice to evil, causing children in the capital to disappear one after another. When the desperate people turn to Lin Wan for help, an old seal guardian exposes the conspiracy and activates a magical treasure to suppress the evil stone lion, finally ending the calamity.