In the summer of 2007, Gahye realizes that her younger brother Gwanghyeon is the class president. She is planning to steal a motorcycle and sell it with her friend Gangseop so she could buy her brother a hamburger on the last day of school before the summer break starts.

Young-Joo (Park Yoo-Na) is a member of the national female curling team. She begins to experience ringing in her ears and this causes her to become a substitute player. Young-Joo travels back to her hometown. There, she meets Sung-Chan (Kim Min-Suk). Young-Joo had a crush on him in the past. Sung-Chan is a former member of the national male curling team. They become partners in mixed doubles curling.

Ji-won, who had cut ties with everyone, takes a job at a factory that provides lodging and meals. She finds her roommate Ju-hee, a girl who dances the Tango all the time, both burdensome and intriguing. Ji-won gets involved in Hyun-woo's accident and feels uneasy as she watches Ju-hee try to take all the responsibility herself.

Returning to sell her old family home, a Korean Guatemalan immigrant confronts buried memories and lingering emotions, ultimately finding closure within its familiar walls

A South Korean agent hunts a drug ring in Russia and goes head-to-head with a North Korean operative — pulling both into peril and tangled secrets.