Ha-Eun’s life has never been easy. At a young age, Ha-Eun’s father died in a car accident. He is forced to move in with Mr. Seo whose gambling problems disrupted the family. Ha-Eun finds solace with his caretaker’s daughter, Eun-Ha. With only a high school education, the bright youngster follows his dreams of joining the police force. In the violent crimes division, he relies on his instincts and intuition to bring closure to unsolved mysteries. After many years of believing his father’s death was an accident, he finds himself facing his own questions about the past. After reopening the investigation into his father’s accidental death, he discovers the truth about what really happened. Ha-Eun tracks down his twin brother, who he had believed to have died years ago, and the two share a short reunion. Mr. Seo’s daughter, Eun-Ha found happiness in the companionship of Ha-Eun.