A black cat slithers sinisterly through the households of Changán's elite seeking out its favorite meal of fish eyeballs; a series of eerie inexplicable events in its wake. When it dares torment Emperor Xuanzong, palace official and aspiring poet Bai Letian (Bai Juyi) and visiting Japanese monk Kukai pair up to track down and exorcise the demon cat. These two historical figures must uncover the cause of the cat's resentment in this wildly speculative account of the inspiration behind the most renown Tang poem in history 長恨歌/Chang Hen Ge/The Song of Everlasting Regret or Sorrow.

Yang Yuhuan (Yang Guifei or Precious Consort Yang) is a cultural legend that stirred the imaginations of artists, poets and writers for centuries. One of the Four Beauties of Ancient China, she was the femme fatale that distracted a great Tang emperor from affairs of state and sent the empire into decline. In this opulent blockbuster, Chen Kaige conjures the fantastical sensuous decadence of the Tang empire at its zenith and the subtle decay of its decline. While Sandrine Pinna hardly leaps to mind,, she passes muster as this famous, captivating beauty that toppled an empire. I cannot rave enough about how masterfully this production evokes the famous poem, with its vivid, erotic imagery of an incomparable beauty, an intoxicating and toxic love story and the haunting intensity of eternal regret and sorrow. Are there limits to an emperor's power or simply limits to an emperor's love?

Where the movie falters is in the narration. Both the role of Bai Letian and that of Kukai are miscast and not well written. The movie dwells too much on Kukai's backstory, which is not interesting and peripheral to the plot. There is zero chemistry between Huang Xuan and Sometani Shota and neither actor conveys why their character is compelled to solve the mystery of this enigmatic and very spooky cat. In fact it is Liu Haoran and to a lesser extent Ou Hao's White Crane and Red Crane that resonate and absolutely steal the show. Liu Haoran's portrayal of youthful infatuation, betrayal, the terrible burden of holding a lasting grudge and the release of letting go leaves the strongest impression among all the performances. If the two lead roles were better written and articulated, I would easily rate this better than 9,0 instead of 8.5. Nonetheless this is one of the best ancient fantasy thriller mysteries I have watched in a long time.