Four assassins meet in a hotel suite to resolve unfinished business. A tense drama set in the cosmopolitan world of Hong Kong.

The story is loosely based on a 17th century erotic Chinese story named The Carnal Prayer Mat and follows a young scholar named Yangsheng who gets married to the beautiful daughter of a local merchant. When their sex life proves unsatisfactory, Yangsheng leaves home and journeys to the Pavilion of Ultimate Bliss.