Han Jung Woo befriends Lee Seo Yeon, the daughter of a murderer.

Han Jung Woo defends Lee Seo Yeon in front of their classmates.

Nurse Jung is found dead in a swimming pool.

Han Jung Woo and Lee Seo Yeon are kidnapped.

Han Jung Woo may have discovered Zoey's true identity.

New evidence shows that Sang Deung's killer was, in fact, a woman.

Harry takes Zoey to have dinner with Han Tae Joon and his wife.

Detective Kim desperately search for traces of Lee Seo Yeon.

Lee Seo Yeon's rapist is murdered.

Lee Seo Yeon's mother sees Zoey at the police station.

Zoey finds out that Han Jung Woo left his home when he was fifteen.

Jung Woo interrogates the cleaning lady on the murder of Kang Sang Deung.

Jung Woo discovered his kidnapping 14 years ago and the two recent murders are all connected.

Zoey finds out that the woman Jung Woo calls aunt and Harry's mother are the same person.

Zoey finds out that the woman Jung Woo calls aunt and Harry's mother are the same person.

Jung Woo and Lee Seo Yeon spent some time together after running away from the cops.

Jung Woo gets himself fired to make sure his team gets to lead the current case.

Jung Woo and his team finds evidence that Harry have also committed a crime in France.

Jung Woo digs deeper into the mystery of Harry's aunt's death.

Jung Woo's stepmother finally reveals to Jung Woo about his relation to Kang Hyung Joon.

It's the finale, Jung Woo must save Seon Yeon from Kang Hyung Joon's capture.