Sex & Zen Vol.4

In Sex & Zen Vol.4, the plot revolves around Hu, who learns about Hao's plan to smuggle counterfeit goods into the country. His investigation leads him to uncover a thieves' nest, prompting him to alert customs. The story takes a turn when Sister Jiang suggests using sex as a trade to gather support for their efforts.

The film features notable performances from actors such as Billy Lau Nam-Kwong, Jimmy Wong Shu-Kei, and CoCo Chow Ka-Yu. As a continuation of the Sex & Zen franchise, it appeals to collectors interested in adult-themed cinema from the early 2000s. The film's unique blend of humor and eroticism is characteristic of the series, making it a notable entry in the genre.