Sex and Zen II is a Hong Kong erotic comedy film directed by Chin Man Kei and released in 1996. The film is a sequel to the 1991 film Sex and Zen, which was based on a classic Chinese erotic novel called The Carnal Prayer Mat.
The plot revolves around Sai Moon-Kin (played by Shiu Hung Hui), a rich and lecherous man who is obsessed with satisfying his insatiable sexual appetite. He idolizes Lawrence Ng's character from the first film, who was a legendary stud known for his sexual prowess and stamina.
When Moon-Kin's mentally handicapped son marries a beautiful young woman named Hua (played by Diana Pang), Moon-Kin becomes enamored with her and decides to take her as his own lover. Unbeknownst to him, Hua is actually a shape-shifting witch known as the Mirage Woman, who possesses powerful "sucking" magic that allows her to drain the life force from her sexual partners.
As Moon-Kin and Hua engage in various sexual escapades, they are unaware of the danger they are in. Meanwhile, Tsui's daughter (played by Isabella Chow) and the righteous Iron Man (played by Elvis Tsui) team up to stop the Mirage Woman before she can unleash her deadly powers on the unsuspecting population.
Sex and Zen II is known for its graphic sexual content, which includes depictions of BDSM, group sex, and other fetishes. The film also has a comedic element, with some scenes played for laughs. Despite its controversial content, the film was popular in Hong Kong and spawned two sequels, Sex and Zen III and 4D Sex and Zen: Extreme Ecstasy.