A young woman, Sari (Rachel Weisz), steals a mysterious box from a blind old man in Persia. As he senses this, he warns her not to open the box, no matter what, before he transforms into a crow and flies away. Her curiosity, however, gets the better of her and she opens the box, freeing a terrible Chinese demon named Tchang Zu. Tchang Zu then turns the whole city into stone. Sari sets out on a quest to reverse Tchang Zu's spell and trap him back inside of the box before it is too late.