'Yin Yang Road Twelve: Beauty Corpse') is a 2001 comedy horror film produced by Nam Yin and directed by Yip Wai-ying.
Sun and Aki, two beauty consultants from Hong Kong, accept an offer to work at their company's new branch in Shenzhen.
That night, Aki's boyfriend, Bud Gay, brings the three of them to a disco run by his friends, the Lai brothers.
Sun follows him home and promises to heal Mrs Cheng's face after accepting a large sum of money from them.
When she tries to stop after the first session, she gets possessed by Mrs Cheng's ghost, who forces her to return and fulfil her end of the bargain.