Kang Woo-ram is busy preparing to get a job. Lee Hyun-ji is a would-be anchor, but she works at a homemade hamburger restaurant. One night, Woo-ram visits the hamburger restaurant and orders a double patty hamburger, which has a "buy one, get one free" sale. This is how their relationship begins.

A film that traces the hard life of 29-year-old woman Seonghye for a significant portion of running time. After graduating from college, she worked as an intern in a large company. When the protest against sexual harassment was ignored, she reported to the Human Rights Commission and left the company. She currently is unable to work elsewhere and lives on part time jobs. Her father is in the hospital, and her mother working at the restaurant asks her for money. Her boyfriend preparing the civil service exam is incompetent and behaves tactlessly. Seonghye, who silently endures working in the difficult situation, makes a deep impression without particular devices to dramatize, because the film centers on the characters' feeling in everyday, instead of developing dramatic events.

Hyeon-woo works in sales at a construction material company. Se-hee has a 5-year-old daughter and works at a bar. The two meet each other by chance, but it is not easy to continue seeing each other, as Se-hee has a daughter and she’s struggling with debt. They try to overcome it, but reality hits them in the face. In the end, Se-hee ends up going back to the bar without telling Hyeon-woo. Hyeon-woo works as a substitute driver at night and ends up seeing Se-hee go into a hotel with a man in a dress…