After graduation from university, childhood friends Ann, Joy, Koi, Mam and Joom move on to follow their respective career paths. They reunite again at a friend's funeral, after which all the five young women decide to stay overnight at Joom's place to recall their good old days. When Ann raises the topic of sex, the conversation goes deeper and deeper until each is forced to reveal details of their most embarrassing sexual experiences – the moments they harbor the most guilt over.

Sin Sisters

Ahimsa is a young man who's haunted by his karma, which takes the form of a mysterious red-haired man who dishes out abuse when Ahimsa runs afoul of morality. When Ahimsa was a young boy, a shaman had the mysterious man removed, but the man returns when Ahimsa is a young man and starts taking drugs and getting involved in rave culture. Ahimsa's behavior soon causes trouble for his friends, Ukhoht and Einstein, and a female physician, Dr. Pattaya.  The film was Thailand's official entry to the 79th Academy Awards. It was chosen after Pen-Ek Ratanaruang's "Invisible Waves" had been withdrawn by the Federation of National Film Associations of Thailand.