Border Line

One night in Taipei, a female factory worker is killed on her way home. Koh Kang-young, the lead detective, concludes that she was killed by a poisonous snake from the bite marks left on the victim's neck. Reporter Lee Ok-jung rebuts his theory in her article. Through this incident, Detective Koh and Ok-jung meet frequently and they become friends. Afterwards, two more women are killed in the same manner. It is revealed that Ok-jung can't account for her whereabouts for each murder. When another murder is committed, Detective Koh finds out the truth about Ok-jung. When Ok-jung was three, a unique snake bit her. Therefore, she kills people by biting them like a poisonous snake.

Kang-wook, a law student at Seoul National University, finds himself in a tight spot financially after losing contact with his family in North Korea. He sells his own blood at a hospital to make ends meet, and there he meets and grows close to nurse Jin-young. As Kang-wook faces financial difficulties, Ki-yong, a son of a landlord's agent, appears and tricks Kang-wook into joining left-wing activities. Ki-yong's true identity is revealed by Yoon-ae, a friend from hometown, leading to his arrest. Meanwhile, Kang-wook and Jin-young marry with the blessings of Professor Park and their friends, while Kang-wook's friend Do-hyeon struggles to hide his feelings for Jin-young. Their sweet days together come to an end with the outbreak of the Korean War, separating them. Jin-young, unable to wait for Kang-wook any longer, decides to flee the war with Do-hyeon. Kang-wook, hiding at Yoon-ae's house, is eventually arrested by Ki-yong and the leftists, who had been freed from prison.

Sooni is the daughter of a strolling male entertainer. After her mother left her, Sooni was raised by Dori's mother and is engaged to Dori. But Dori's friend Chil-sung also has crush on her. One day, Dori wins the wrestling game at the marketplace and earns money as reward. With that money, he buys Sooni a jade ring. However, an air of misfortune begins as Mr. Kim, who is a forest keeper shows up.

A husband-wife teaching team arrive on isolated Sachi Island. They try to start a school against the opposition of the islanders. To attract students, they organize athletic teams from the island children and promise that they will win the national competitions... a promise they may not be able to keep.

The widower Choi is impotent. He adopts the infants Mun and Su-ryun and raises them. Mun graduates from college in Seoul but he can’t adjust to Seoul life so he returns to Choi’s home. Mun learns that Su-ryun is not his sister in blood and he falls in love with her.

One rainy day, a young auto-repair shop worker, Cheol, falls in love with the housemaid of a rich family, Young-hee. Cheol lies to her that he is a college student, and she also conceals what she does.

College girl Jang-mi, has trouble coping after her break up with with Kyu-sik. She suffers from the relationship with her emotionally distant father and falls for a mid-aged man she encounters on a train. This she abandons because he's married, and wanders aimlessly into being a prostitute. Kyu-sik's harsh judgment when he finds out, leads to her overdose on sleeping pills. This results in her stay in a mental hospital where she may fall in love again. But can her dreams of married bliss happen, considering her past?

The matriarch of a highly respected family orders one of her daughter-in-laws to kill herself unless she can produce a child within a year.

Han Wu-song, an antique collector, gets killed while appraising a bronze horse rider statue which trader Wang Dae-in has stolen from a tomb. Dae-in dies on the scene and Wu-song leaves the killer's name on the cave wall before he dies. Dae-in's son Wang Gak thinks Wu-Song killed his father and fights with his son Jung-pa. Trader Kwan and her daughter Mi-ryung stop the fight. Jung-pa and Mi-ryung's love is disturbed by Ju-yang. Gak and Jung-pa chase him to find Wu-song's body with Ju-yang's name on the wall but Mi-ryung appeals them not to kill...