Saenghwalui balgyeon - Hong Sang-soo (2002)

After being passed over for a role in an upcoming film, actor Kim Kyung-Soo leaves Seoul to visit his old pal, Sung-Woo. While in Chuncheon, they take a ferry ride to see the fabled "Turning Gate." The two of them never actually make it to the gate, but along the way, Sung-Woo tells his friend about the legend attached to it.
During the first half of the movie, the men meet up with Nyung-Suk, who quickly becomes smitten with Kyung-Soo. Nyung-Suk and Kyung-Soo find time to be alone and end up embarking on a passionate one-night stand. Nyung-Suk falls hard for Kyung-Soo, and numerous complications arise for everyone involved, resulting in our hapless hero taking the next train back to Seoul not long afterwards.
While on the train, Kyung-Soo finds himself sitting next to the beautiful Sun-Young. She claims to recognize Kyung-Soo from his acting jobs, but he doesn't have a clue who she is. When she gets off the train at her stop, Kyung-Soo is impelled to follow her. After a humorous encounter involving her nosy family members, the two find time to get to know each other. But what initially seems like a case of "love at first sight" (or "lust at first sight" anyway) turns out to be much more as Sun-Young reveals more about her past connection to Kyung-Soo. Not long after, he falls deeply in love with her (maybe!), and perhaps she with him.