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본 어게인
Fate entwined by love from lives past.
Life, death and second chances take center stage in this story about three people whose intertwined destinies travel through space and time with haunting results. It’s the 1980s and Detective Cha Hyung Bin has devoted his life to criminal justice, and his heart to Ha Eun, a bookshop owner suffering from heart disease who keeps her illness a secret. But Cha Hyung Bin isn’t the only one pining after Ha Eun: serial killer Gong Ji Chul has also fallen in love with her. Their lives collide with tragic results, but 30 years later, they’re reincarnated and fate brings them together again. The more time passes, the more their new lives become tangled in the devastating web of history. Will they manage to escape the past, or be forced to come face to face with it?
Hyung Bin who is a detective asks his girlfriend, Ha Eun to marry him. But she refuses because of her heart disease. Meanwhile, another dead body has been found. Some crazy woman rushes into the crim scene and picks up a yellow umbrella. And the mystery man also has a yellow umbrella with him.
Ha Eun teaches kids at the church. By chance, Ji Chul takes her class and he ends up falling in love with Ha Eun. One day, Ji Chul sees an abused child who used to be his friend dead. Ha Eun collapses from her heart disease and Ji Chul finds out that she needs a heart transplant.
Ha Eun collapses after she witnesses a murder scene. And Hyung Bin finds out that it was Ji Chul who brought Ha Eun to the hospital. Hyung Bin protects Ha Eun day and night after the incident, and Ji Chul always watches Ha Eun from distance.
Ha Eun visits Ji Chul before the trial and asks him if he killed accidentally. But Ji Chul answers he would've done the same even if he goes back in time. Ji Chul is put in a psych ward but escapes. Ha Eun heads to the cathedral where she is getting married to Hyung Bin.
Jong Bum runs into Sa Bin at the University and he finds out that she had a heart implant when she was young. Sa Bin hears rumors about Jong Bum from students that he's actually a psychopath and he has killed someone. Su Hyuk and Sa Bin encounter at the place where some remains are discovered.
Jong Bum goes home but his father and brother don't seem to like him at all. The mummy found from Donggang River turns into skeletons in a day. Su Hyuk keeps feeling pain in his eye and Jong Bum's hand keeps twitching. And finally, Sa Bin, Jong Bum, and Su Hyuk meet.
Su Hyuk tries to forge the evidence of Donggang River mummy so Byun Sung Hoon can be sentenced to life. Jong Bum visits a woman's house to do the errands for her and she asks him to have a drink with her. Sa Bin and her friend try to restore the face of a mummy from Donggang River.
Su Hyuk finds out that it was Jong Bum who was with the victim of a copycat murder case. But Su Hyuk feels pain in the heart as he follows Jong Bum to the exhibition and sees him with Sa Bin. The criminal Byun Sung Hoon presses Su Hyuk with the lawyer. Sa Bin discovers crucial evidence from the book that was with the mummy and calls Su Hyuk.
Su Hyuk saves Sa Bin from a terrible car accident. Sa Bin's heart starts to pound for Su Hyuk. Su Hyuk tells Jong Bum's father that Jong Bum is the prime suspect of a murder case. Jong Bum decides to leave his family.
Sa Bin posts the restored image of a mummy from Donggang River. Su Hyuk finds out that Sa Bin posted the image and gets furious. Ji Chul picks up the notebook that Sa Bin dropped and reads about Gong Ji Chul. Su Hyuk makes a deal with Seo Tae Ha and looks for the buried bodies that were killed by Byun Sung Hoon.
After the remains of a buried baby are found, Jong Bum and Su Hyuk face each other as a prime suspect and a prosecutor. Jang Hye Mi, the writer of "Secrets of A Murderer," says that Gong Ji Chul was never a psychopath. She is sure that Jong Bum is going to kill someday.
It turns out that the remains were identified as Lim Hwa Young's baby. Sa Bin realizes Jong Bum's relationship with his little brother and sympathizes with him. Sa Bin and Su Hyuk visit “Old Future,” the secondhand bookshop. Both Su Hyuk and Jong Bum begin to have feelings for Sa Bin.
Su Hyuk lost his father who believed in humanity in the past. After his death, Su Hyuk has been fighting against beast-like criminals. Jong Bum’s feelings for Sa Bin grow bigger. But he finds out that Sa Bin has feelings for Su Hyuk, and a post is uploaded on Seoyeon University’s social media site.
Sa Bin sees the painting of Cain and Abel and has a hunch that something will happen with Jong Bum and his little brother, so she follows him to the charity gala. Sa Bin almost drowns and as she's close to death, she remembers a strange memory. Jong Bum dreams about killing Sa Bin, whom he loves.
Su Hyuk investigates what happened on the day Jong Woo almost drowned and finds out Jong Bum was at the lake before the incident. Meanwhile, Jong Bum shows up where Sa Bin is using the tracking application. Su Hyuk visits the nursing hospital where the prison officer who executed Gong Ji Chul is, but it turns out that he is missing.
Sa Bin struggles with her feelings for Su Hyuk. Jong Bum decides to get rid of Su Hyuk for Sa Bin and himself. Chief Prosecutor Chun warns Su Hyuk to leave Jong Bum alone, but Su Hyuk makes up his mind to go against him. Sa Bin finds out that a woman gave her father a note.
Sa Bin gets transferred to the hospital after she was stabbed by a thug. Su Hyuk finds out that it was Jong Bum who incited to murder Su Hyuk. Sa Bin notices that there is a tracking app on her phone and she assumes that Jong Bum was following her all along. The police discover a tattoo from the victim, Lim Hwa Young, and start to track down the person who purchased the tattoo ink.
Jong Bum takes a picture of Detective Ju being attacked by someone. And he meets and talks with the attacker. Su Hyuk says goodbye to his fiancee and confesses his feelings for Sa Bin. Su Hyuk discovers that Jong Bum’s father was the prosecutor in charge of Gong Ji Chul’s murder cases. Jong Bum sees Sa Bin and Su Hyuk kissing at the bookstore and suddenly feels pain in his eye.
Su Hyuk sees Jong Bum on the camera which was installed at the place where Detective Ju was attacked. So Su Hyuk believes Jong Bum attacked Detective Ju. Jong Bum notices his house was robbed by someone and realizes that his painting was missing, and all of his photos on his phone are sent to somewhere else.
Jae Yi tells Su Hyuk that Jong Bum has been stalking Sa Bin. And Su Hyuk is convinced that Jong Bum attacked Detective Ju after hearing the recording file from Detective Ju’s phone. Jong Bum invites Sang Ah, telling her that he’ll show his first murder, and Sang Ah invites Sa Bin to the place.
