Kwon returns to Seoul from a restorative stay in the mountains. She is given a packet of letters left by Mori, who has come back from Japan to propose to her. Kwon drops and scatters the letters, all of which are undated. When she reads them, she has to make sense of the chronology.

On 31 January 1968, 31 North Korean commandos infiltrated South Korea in a failed mission to assassinate President Park Chung-hee. In revenge, the South Korean military assembled a team of 31 criminals on the island of Silmido to kill Kim Il-sung for a suicide mission to redeem their honor, but was cancelled, leaving them frustrated. It is loosely based on a military uprising in the 1970s.

Seok-jin, a magician at a club, meets a mysterious woman, Ha-yeon, who soon becomes his assistant and fiance. Things take a turn when she is found dead and he must find out what happened.

An aspiring singer Sun-deok is visited by her mother, whom she hasn’t spoken to in years. The abrupt encounter leads to the news of her younger sister Yuri, who had vanished with their savings. The mother-daughter team is now hunting for the missing girl and their money, poking around in Itaewon, the international hub of Seoul. Little do they know that soon they will be faced with Yuri’s unlikely secrets.

Yu-ra yearns for money and fame while Jun wants to go back to his hometown. Yu-ra scolds Jun. Jun helps Yu-ra in her efforts to become a star. In her reach for stardom, Yu-ra is unaware that a person is helping her out from behind the scenes.

Three friends from the northern half of Seoul move to the more affluent southern half, but experience many troubles there.

When two brothers are forced to fight in the Korean War, the elder decides to take the riskiest missions if it will help shield the younger from battle.

Three grown sons have struggled to achieve some sort of normal routine after their father was sent off to prison for sexual assault on an underaged girl. Their lives are thrown into radical disarray when dad finishes his time and returns to the family home. The fact that the victim’s father is awaiting the return outside their door with a knife is certainly not any help to their situation... but it’s not like things are going so well otherwise, with the three sons, a virtual compendium of sexual dysfunctions in their own right.

A drifter lives in people's houses while they are away and repays them by doing chores for them. His life changes when he meets a beautiful woman who wants to escape her unhappy marriage.

A teenage girl is captured by a giant mutated squid-like creature that appears from Seoul's Han River after toxic waste was dumped in it, prompting her family into a frantic search for her.

Min-Soo is a playboy who can't tolerate long term relationships. However, fate takes him to beautiful Hye-Won. While, Min-Soo becomes totally captivated by Hye-Won, Hye-Woon tries to resist Min-Soo, fearing their love will be shortened by her terminal illness.

After 14 years in Japan, a gangster returns to the Seoul neighborhood where he grew up and is forced to confront some difficult truths.