Steel Cold Winter

Yoon-soo was once a student at one of the best high schools in Seoul, but a trivial remark he made turns into a vicious rumor that leads his friend to commit suicide. Unable to bear the guilt, Yoon-soo attempts to kill himself. To help him recover, his family moves to Ijeon-li, a snow-covered village on a mountain. On the day of the move, Yoon-soo sees a mysterious young girl skating by herself on the frozen lake. Having started school in this small, rural town, Yoon-soo slowly finds peace within. Despite the villagers' kindness and his peers' ongoing fascination with him as a cool guy from the city, he keeps to himself. There is, however, one girl who gets Yoon-soo's attention: the class outcast Hae-won. The aloof Hae-won, who lives alone with her mentally disabled father, is viewed as a pariah by the entire village and constantly at the center of the townsfolk's gossip. As if seeing himself in her, he offers her sympathy and warmth, and Hae-won slowly opens up to him, feeling that he's the only one who understands and accepts her. But soon, Yoon-soo also becomes consumed by the brutal rumors surrounding Hae-won.

• Kim Si-hoo as Seo Yoon-soo
• Kim Yoon-hye as Eun Hae-won
• Moon Chang-gil as Yang Yi-chang (village foreman)
• Lee Jang-yoo as Duk-man
• Jo Han-chul as Doctor
• Woo Jung-gook as Kim Soon-kyung
• Park Jin-woo as Man-suk
• Yoon Kyung-ho as Teacher
• Jung Doo-gyum as Seo Yoon-soo's father
• Joo Yoo-rang as Seo Yoon-soo's mother
• Park So-dam as Ji-yeon
• Jang In-sub as Young-jae
• Oh Hee-joon as Hyung-joon
• Kim Kwang-seop as Kwang-seop
• Lee Tae-hee as Young-joon
• Chun Jung-ha as Young-joon's mother
• Heo Tae-kyung as Yang Yi-chang's wife
• Han Hee-jung as Seoul School home room teacher
• Seo Hyun-woo as Math teacher
• Jung In-gi as Myung-kwan (cameo)
• Gi Ju-bong as Young-joon's father (cameo)