Mi-ja, who has been taking care of a retired teacher, Ms. Park, invites several of her former students to her house 16 years after their graduation. Since the end of her teaching career, Park has been residing in the countryside, suffering from an illness while an ex-student, the kind and pretty Mi-ja cares for her.

In-man is a timid but caring man who creates a suicide group for his first night with his girlfriend and suggests a 'bucket list'. Strong but weak woman Ji-eun is at risk of being sold to some islands because of debt thats started with her college fees so she decides to spend a whole lot of money before she dies. Hye-ri is a bright but pained girl who gave everything to a man she loved but got nothing in return. Cho-hee is a woman who's life isn't the same after sending away everyone she ever loved. The four people alike, fulfill their 'bucket list' before they die and find hope and happiness in the process.

Eun-hee is an extravagant and selfish woman who lives a life of luxury. She constantly swears, acts extremely careless, and is unashamedly tactless. Yet she somehow manages to be loved by both her husband, Doo-chan, and Keum-sook, a childhood female friend.

Kang Dae-Ho, a naughty boy used to be an academic failure, could not be more different than Ko Eun-Bi, a prim girl and model student. On one stormy day, lightning strikes both of them and knocks them unconscious.

In the gloomy 80s, Sang-ho is wanted by the authorities for his participation in the student movement. Parting with his colleagues, Sang-ho happens to end up in a town on the outskirts, a town he has no connection to. The place where he is in hiding is the second floor of a worn down wooden house. Spending his time idly in the room, one day, Sang-ho discovers a hole looking into the room downstairs by chance. Casually looking through the hole, Sang-ho exhales. At first, Sang-ho tries to avoid looking, out of guilt. However, before he knows it, he is drawn to the hole. Every gesture she makes is very captivating and seductive. He watches her body, feels her, and takes her into his heart.