Sang-hyun is always struggling from debt, and Dong-soo works at a baby box facility. On a rainy night, they steal the baby Woo-sung, who was left in the baby box, to sell him at a good price. Meanwhile, detectives were watching, and they quietly track them down to capture the crucial evidence.

When viewed in public, the Kim's seem to have the perfect marriage. In private, however, their married life is filled with turbulence, fighting, cheating, and accusations.

A North Korean diplomat defects to the South during the Cold War, but the South Koreans have their suspicions as to whether he is an actual defector or a double agent.

Eighteen year-old Tae-hoon and Mi-jung have been going out for 100 days. During winter break they decide to take a trip to the beach to celebrate their anniversary. When they are back home after a few days, they have to confront a harsh situation – Mi-jung’s parents don’t allow them to see each other until they become college students. Tae-hoon struggles to keep their love and wanders around Mi-jung but she is eventually changed and avoids him as her parents wish. Winter turns to spring, and Tae-hoon and Mi-jung both turn nineteen.

Go-ni tries his best to worship Pyung Gyung-jang as his teacher, and promises to stop gambling after winning his money back. But people's desires are endless.