Four high school friends maintain their ties but finds themselves in very different situations when they reach 21. Chu-won was a promising athlete but, drinking heavily and unable to get past an old flame, he ruins his prospects. Goo-rim became on idol singer, but a drug scandal has seen him fall on hard times. Seo-won, as a medical student at a top university, was faring best among them, until he is diagnosed with leukemia and falls for a teenage escort from their old high school. Meanwhile, Dae-sung is a sex addict with a penchant for mature women who dreams of making his own film.

Speed

Three friends from college are now on the brink of turning 40. To attend a funeral on Jeju Island, they go on an unexpected trip as a getaway and wind up at a guest house, where water shimmers, wind blows, and pretty women are seductive, inviting the trio back to their 20s.