1Episode 1
Han Jung Woo befriends Lee Seo Yeon, the daughter of a murderer.
2Episode 2
Han Jung Woo defends Lee Seo Yeon in front of their classmates.
3Episode 3
Han Jung Woo and Lee Seo Yeon are kidnapped.
4Episode 4
Detective Kim desperately search for traces of Lee Seo Yeon.
5Episode 5
Nurse Jung is found dead in a swimming pool.
6Episode 6
Han Jung Woo may have discovered Zoey's true identity.
7Episode 7
Lee Seo Yeon's rapist is murdered.
8Episode 8
New evidence shows that Sang Deung's killer was, in fact, a woman.
9Episode 9
Lee Seo Yeon's mother sees Zoey at the police station.
10Episode 10
Harry takes Zoey to have dinner with Han Tae Joon and his wife.
11Episode 11
Zoey finds out that Han Jung Woo left his home when he was fifteen.
12Episode 12
Jung Woo interrogates the cleaning lady on the murder of Kang Sang Deung.
13Episode 13
Jung Woo digs deeper into the mystery of Harry's aunt's death.
14Episode 14
Jung Woo discovered his kidnapping 14 years ago and the two recent murders are all connected.
15Episode 15
Jung Woo gets himself fired to make sure his team gets to lead the current case.
16Episode 16
Zoey finds out that the woman Jung Woo calls aunt and Harry's mother are the same person.
17Episode 17
Zoey finds out that the woman Jung Woo calls aunt and Harry's mother are the same person.
18Episode 18
Jung Woo and Lee Seo Yeon spent some time together after running away from the cops.
19Episode 19
Jung Woo and his team finds evidence that Harry have also committed a crime in France.
20Episode 20
Jung Woo's stepmother finally reveals to Jung Woo about his relation to Kang Hyung Joon.
21Episode 21
It's the finale, Jung Woo must save Seon Yeon from Kang Hyung Joon's capture.