A Single Spark (; lit. "A Beautiful Youth, Jeon Tae-il") is a 1995 South Korean drama film directed by Park Kwang-su.

Plot

The film is set in Seoul, South Korea, and is told from two different perspectives in different timelines. In the 1980s a law school graduate Kim Yeong-su (Moon Sung-keun) has a history of militant and subversive activities and is subsequently in hiding from the authorities. He has secret meetings with his wife Shin Jeong-soon (Kim Sun-jae), who is pregnant with their first child and is also trying to form a trade union at her place of work. To use his time productively he is working on the biography of Jeon Tae-il (Hong Kyoung-in), a garment worker who committed suicide five years ago to draw attention to labour right's abuses. Kim Yeong-su has contacted Jeon Tae-il's mother, and travels around the city having clandestine meetings with the activist's friends and former colleagues, interviewing them for material for his book. This timeline is shown in full colour.