Padam, Padam... The Sound of His and Her Heartbeats.

A man serves 16 years in prison for a murder he didn’t commit. Yang Kang Chil maintains his good nature nonetheless and is protected by his best friend Gook Soo. After his release from prison, Kang Chil becomes a carpenter and tries to rebuild his life. He falls in love with Jang Ji Na, a veterinarian who happens to the niece of the victim in Kang Chil’s murder case. Can Kang Chil prove his innocence and bring the real killer to justice to save his relationship with Ji Na?