After a fatal car crash which kills their father twin brothers are separated, each believing the other twin is dead.

Dong Chan faces questioning at the police station but Seo Ha Eun is skeptical of his alibi; Eun Ha falls asleep as she rides home on the bus.

Seo Ha Eun runs on a playing field at night, screaming about his life. A woman meets with Chief Gi Do to ask about Dae Sik's mysterious death.

Ha Eun tries hard to keep the investigation going, but he keeps getting sidetracked; Ha Eun's boss uncovers a big secret that could change everything with the investigation.

Ha Eun reunited with his twin brother, Shin Hyuk, after twenty long years. A terrible tragedy occurs after the meeting that will change Ha Eun forever.

Ha Eun is devastated after the death of his twin brother, Shin Hyuk. Ha Eun wants revenge and considers assuming his brother's identity to help him do so.