Dr. Mi-Soo misdiagnoses a patient after she meets the woman’s husband, whom she assumes to be abusive. With his wife in grave condition, the man sues the hospital. Kang-Il is a widowed firefighter who overhears the situation and when he attempts to counsel the woman’s husband, he is assaulted by him. When Mi-Soo learns about the confrontation, she tries to get Kang-Il to be a character witness for her and realizes that he may also be her true love.