S1 E1 • My Father Is the Criminal That Ran Away

During an interview for Police University, Chae Do Jin nonchalantly confesses that he is the biological son and the witness against the infamous serial killer, Yoon Hui Jae. Since Hui Jae’s crime was serious, everyone knew about him and what he did. Words spread quickly across the interviewees, and some start looking at him in fear.

Première diffusion : 16 mai 2018

S1 E2 • New Kid

Nak Won and her family move from Seoul to a countryside after her mother and actress, Jee Hye Won, decides to take some time to rest. On her first day of school, she is reprimanded by a teacher for not wearing neat clothes. Suddenly, Na Moo comes to her rescue and stands up for her. Meanwhile, a murder of an elderly couple has occurred.

Première diffusion : 16 mai 2018

S1 E3 • See You Again

Nak Won finds Lucky’s name tag in front of Hui Jae’s house, but Hui Jae shows up. Na Moo finds a dog locked up in a cage which was Lucky. Hui Jae explains why Lucky happened to be here, but Nak Won and Na Moo finds it suspicious.

Première diffusion : 17 mai 2018

S1 E4 • The Time I Realized

Na Moo protects Nak Won from friends who try to harm her. Ok Hee hears Hui Jae is having an affair with various women and she tries to deny it. Hui Jae ap-proaches a lady at the bus stop and asks her to take his ride.

Première diffusion : 17 mai 2018

S1 E5 • You’re Like a Paradise to Me

Ok Hee takes So Jin and run away from Na Moo's father. Na Moo tells Nak Won about his feelings, but he sheds tears at the same time while telling her so. Meanwhile, in the present, Do Jin is haunted by the memory of his father.

Première diffusion : 23 mai 2018

S1 E6 • Come to Me

Lack of acknowledgement and mistreatment from a colleague aren't enough to bring down the passionate actress Jae Yi. However, she is reminded of the past when she finds out about the release of Hui Jae's autobiography.

Première diffusion : 23 mai 2018

S1 E7 • Where Are You?

Ji Ho is following Jae Yi to get the scoop on her past, and other reporters start to dig in to get an exclusive story for the tabloids as well. They put Jae Yi in a tight corner, and Do Jin rescues her from them. She realizes right away that it is none other than Na Moo himself, but she passes out in his arms.

Première diffusion : 24 mai 2018

S1 E8 • We Are Still Alive

Pyo Taek, Jae Yi’s manager, gets furious with Reporter Park as she revealed Jae Yi’s past to the media. The victims’ families boycott Hui Jae’s autobiog-raphy. Do Jin’s family receives anonymous threatening calls after the book went viral, thus they call Do Jin to tell him not to have any visitors until his graduation.

Première diffusion : 24 mai 2018

S1 E9 • He’s a Psychopath Who Cannot Feel Any Emotions

Hui Jae is caught by the police because of his own son, Na Moo. He tells Na Moo that wickedness is not something that can be developed but that it is in one’s blood. Meanwhile, Hui Jae’s autobiography puts the spotlight on Jae Yi and her family. Do Jin decides to be interviewed and even asks for his face to be revealed.

Première diffusion : 30 mai 2018

S1 E10 • That’s on You

During the Police Academy’s graduation, Do Jin is awarded the Presidential Award. Suddenly, a group of Hui Jae’s victims’ families barge in and throws eggs at him. They tell him that he is no different from his father and that he does not deserve to be a police officer. Amongst this chaos, Hee Young smiles while she takes photos.

Première diffusion : 30 mai 2018

S1 E11 • I Really Wanted to Be on TV

Jae Yi joins the Korea Arts Award. Meanwhile, Do Jin becomes a detective of violent crimes. As he is out on a stakeout to catch the culprit of the recent as-saults, he gets injured and goes to the hospital.

Première diffusion : 31 mai 2018

S1 E12 • I Met Someone I Shouldn't Have Met

Jae Yi faints after opening a gift that was delivered to her waiting room at the awards. Do Jin and Jae Yi happen to be taken to the same hospital, and they end up meeting at the lobby. Later, Jae Yi visits Do Jin at the police station.

Première diffusion : 31 mai 2018

S1 E13 • Now, I’m No Longer That Kid

Do Jin finds out that a bloody hammer was delivered to Jae Yi as well as a card written to Jae Yi’s real name, Nak Won. He asks Senior Inspector Ko to hand over this case to him, stating that these are signals targeted to the case 12 years ago. Despite the senior inspector’s plea not to get involved, Do Jin takes on the case.

Première diffusion : 6 juin 2018

S1 E14 • I Guess Your Weakness Is Still Na Moo

During Jae Yi’s shooting, the lights suddenly turn off. As soon as the lights turn back on, Do Jin finds Jae Yi trembling with fear. The shooting gets called off, and Do Jin shows her a photo of his own brother, Hyun Moo, and asks if she has seen him. He tells her that if she ever encounters him that she should run away because he is considered dangerous.

Première diffusion : 6 juin 2018

S1 E15 • Nak Won, I Am Right Here

Hyun Moo is suspected of being involved in the incident at the filming site. To protect Jae Yi from him, Do Jin goes after his brother with an arrest warrant. Jae Yi is saved by Do Jin once again, and she falls asleep in Do Jin’s arms dreaming of Na Moo keeping her side.

Première diffusion : 14 juin 2018

S1 E16 • I Will Destroy Everything You Love

Moo Won makes a phone call to Hee Young and threatens her not to bother Nak Won anymore. However, she threatens him back saying that she can sell his story with Nak Won to a tabloid. Hyun Moo causes a disturbance at Ok Hee’s restaurant and runs to Jae Yi’s place with a weapon in his hand. There, he meets his brother who was waiting for him.

Première diffusion : 14 juin 2018

S1 E17 • Why Don't You Believe Me?

Hyun Moo breaks into Jae Yi’s garage, but Do Jin tries to stop him from killing her. However, he falls into a serious condition after his brother stabbed him. Covered in blood, Jae Yi brings him into the hospital. With Ok Hee keeping her side, Jae Yi prays for Do Jin’s recovery while her lover is undergoing a surgery.

Première diffusion : 21 juin 2018

S1 E18 • I Just Want to Be Happy

Hyun Moo comes across his half-sister So Jin and tells her that he attacked Do Jin to prove himself to their father. So Jin tries to stop him from committing further crimes but he gets away. Ok Hee pays a visit Hui Jae for the first in 12 years to warn him not to bother their children anymore, but leave them alone in peace. However, Hui Jae reminds her that they are not only suffering from his sin but hers as well.

Première diffusion : 21 juin 2018

S1 E19 • Please Come Back Where You Were

Hyun Moo finally faces the real culprit who orchestrated the residential area murders and the attempted attack on Jae Yi on behalf of Hui Jae. Meanwhile, Hui Jae is confined to a punishment quarter for brutally assaulting his correc-tional officer. Hee Young pays a visit to him in prison to stir him up again.

Première diffusion : 28 juin 2018

S1 E20 • Now I Know How it Feels

Do Jin recovers from the wound faster, thanks to his family and Jae Yi. After Do Jin got discharged from the hospital, Jae Yi asks him out on a date. The young couple goes on a picnic and has a great time together not worrying about the problems around them for a moment. A reporter from another magazine comes to visit Ok Hee to give her a hassle, but Moo Won helps her to get rid of the an-noying reporter.

Première diffusion : 28 juin 2018

S1 E21 • I Like You

Unable to keep his feelings hidden any longer, Do Jin confesses his love to Jae Yi, and she replies back with a kiss. They both tell each other that it’s crazy that they like each other but that they cannot help it. Meanwhile, everyone from Gowon Station who were on the case 12 years ago are summoned for an inter-rogation in secret.

Première diffusion : 4 juillet 2018

S1 E22 • It’s a Copycat Crime

During an interrogation, Hui Jae threatens Moo Won and tells him that Nak Won will be the next victim. Enraged, Moo Won grabs him by the collar and warns her not to touch her. Meanwhile, news spreads regarding Reporter Park Hee Young’s death. Do Jin goes to the crime scene and finds a bloodied hammer.

Première diffusion : 4 juillet 2018

S1 E23 • Yoon Na Moo

Filled with anger and hatred against his son, Hui Jae plans for something that he has been waiting for many years. Now, Do Jin finally starts to investigate Yeom Ji Hong, the copycat of Hui Jae, and Jae Yi cannot help herself but wor-ries about her lover’s safety. The young couple needs each other now more than ever.

Première diffusion : 5 juillet 2018

S1 E24 • Evil Shall Prove Itself

Do Jin visits the broadcasting station to meet Jae Yi and catches her shooting a romance drama with a handsome actor and gets jealous of him. The copycat of Hui Jae, Yeom Ji Hong, shows up in front of So Jin, but fails to assault her because of Hyun Moo. Meanwhile, Hui Jae gets a car crash while in transport to another facility.

Première diffusion : 5 juillet 2018

S1 E25 • Please Don’t Avoid Me

Hui Jae manages to escape from prison. Worried about Jae Yi, Do Jin goes to her house and comforts her. He promises her that he will put everything back to normal and suggests they stay together for the time being. Meanwhile, the police suspects that Hui Jae is in Seoul.

Première diffusion : 11 juillet 2018

S1 E26 • All I Need is You

Moo Won hands over the video footage he received from Hyun Moo to Do Jin. Do Jin focuses on finding the copycat killer, Ji Hong, and Ji Hong keeps asking for permission to kill Do Jin. Meanwhile, Hui Jae tracks down Ok Hee.

Première diffusion : 11 juillet 2018

S1 E27 • Could We Have Lived a Normal Life?

Hyun Moo visits Ok Hee’s restaurant but only finds it closed so he goes home to check out on her. Outraged by what Hui Jae has done, Do Jin goes straight to Ji Hong and makes him give the name of Hui Jae’s helper who has been working with him all along. It is a woman in her 40’s, and Do Jin starts digging who she is and her whereabouts.

Première diffusion : 12 juillet 2018

S1 E28 • Now I Have to Face Him Again

Do Jin finds Hyun Moo and Ok Hee lying on the floor when he gets back home. Moo Won and Do Jin finally confirm the identity of Hui Jae’s helper, Jeon Yoo Ra, and start looking for her. Meanwhile, Hui Jae visits the bamboo trees to retrieve the hammer he hid 12 years ago.

Première diffusion : 12 juillet 2018

S1 E29 • You’re Human

Première diffusion : 18 juillet 2018

S1 E30 • Come to See Your Father

Première diffusion : 18 juillet 2018

S1 E31 • You Destroyed Everything I Had

Première diffusion : 19 juillet 2018

S1 E32 • You Are My Salvation

Première diffusion : 19 juillet 2018