It's not true that I remember my husband's disappearance and the strange events that happened. Soo-yeon is consulted by psychiatrist Jeong-woo after her husband Yeong-min disappears, and Jeong-woo visits the site and advice Soo-yeon whose memories are confused to visit the place where she first met her husband. Soo-yeon suddenly changes her attitude when she finds her dead husband Yeong-min's body there. Meanwhile, Soo-yeon learned from the insurance investigator that all the men who had been married so far died and received huge insurance money. At that time, Soo-yeon and Jeong-woo who invited Jeongwoo to a party in a remote mansion in the mountains, face a shocking and terrible truth there.

Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.

After a few months of social adjustment training, the North Korean refugee Jina moves to a small studio in Seoul and starts her new life. To bring her father to South Korea, she needs money but no matter how hard she works, the discrimination doesn’t let her save enough money.

One summer, the siblings reunite with their family after a long time. But as conflicts surrounding their father rise to the surface, the fractures between them become visible, and the family slowly begins to show signs of collapse.