Every 50 years, a member of the Cheung family must kill a cat demon until its nine lives are up. However, Master Cheung is worried cancer will kill him before he can complete his task and decides to give a newcomer the power to defeat the demon.

Ah-feng is a teenager who is raped by her Mother's boyfriend. Following her subsequent pregnancy she decides to seek revenge.

Because of a hospital hex, whenever a certain patient sleeps he visits a supernatural world of hopping zombies and warring priests.