Following up on his acclaimed work Full Throttle, Derek Yee Tung-sing made the unusual move of not only collaborating with movie industry unknown Law Chi-leung, but also to make category III sex comedy. After a string of commercial flops, art house director Sing (Leslie Cheung) resorts to making a softcore film called Viva Erotica in order to pay the bills. His gangster producer, Chung (Law Kar-ying), insists that Sing cast his beautiful, though talentless, girlfriend Mango (Shu Qi) in the lead role. As Sing wrestles with his desire to make this film something more than a cheap porn flick, he also wrestles with his desire for Miss Mango. Meanwhile, Sing's girlfriend, May (Karen Mok), is having a fit over her boyfriend's new project and his sudden lack of passion at home.