If you love The Untold Story or Ebola Syndrome two of the best CAT III movies ever made both directed by Herman Yau and starring Anthony Wong you gonna have a blast with The Sleep Curse.The movie is cliché and rely heavily on flashback scene but over the top element of a proper CAT III still there like over the top gore and long disturbing sequence.I enjoy the movie for what it is but at the same time disappointed when it not go all the way like i expected