Detective Dee is pardoned of prison by the empress with the condition that he solve a complicated case in 7 days, that of ghost soldiers who have ended the life of officers of her majesty.
An exiled detective is recruited to solve a series of mysterious deaths that threaten to delay the inauguration of Empress Wu.
Dee, the detective serving Chinese empress Wu Zetian, is called upon to investigate a series of strange events in Loyang, including the appearance of mysterious warriors wearing Chiyou ghost masks, foxes that speak human language and the pillar sculptures in the palace coming alive.
The action-packed and captivating tale of Dee Renjie's beginnings in the Imperial police force. His very first case, investigating reports of a sea monster terrorizing the town, reveals a sinister conspiracy of treachery and betrayal, leading to the highest reaches of the Imperial family.