Eun-ho disappears without warning after saying she will use up all her saved leave days. Joo-yeon becomes frustrated as Hyeri never appears again no matter how long he waits.
Right before a live broadcast, Eun-ho is shaken by rumors she hears about Hyun-oh. During the news, she makes a disastrous mistake and soon faces the threat of being pulled from all her programs.
Hyeri goes to support the Media N Seoul sports day with snacks and ends up paired with Joo-yeon for dodgeball. She accidentally injures her hand during the event. A few days later, at a joint campaign shoot, Joo-yeon meets Eun-ho, who looks exactly like Hyeri.
On the outside, Hyun-oh seems to have grown up in a warm and wealthy family, but he carries a secret pain he has never shared, not even with Eun-ho. He chose to break up with her because he could not bear to share his unhappiness with the woman he loved.
After blacking out from her panic attack, Eun-ho wakes up at home. Hyun-oh is quietly sitting beside her, watching over her. His gentle care reminds her of the days when they were madly in love, which feels unfamiliar yet comforting.
Eun-ho's identity keeps drifting between herself and Hyeri. The psychiatrist advises that they uncover the link between the two.
Eun-ho cannot believe that Hyun-oh is the one who saves her from danger. But Hyun-oh coldly tells her to live her life well without relying on him.
Bom starts to see ghosts. Gi-ju tries everything he can to help her stop seeing ghosts.
As Bom grieves the recent passing of her grandmother Mrs. So, Gi-ju stays by her side. One night, Mrs. So appears in the studio as a spirit and asks Gi-ju to keep her visit a secret. Gi-ju lies to Bom about it, but he can't shake the guilt.
Gi-ju starts to suspect that Bom has a special ability. Whenever she's nearby, ghosts can't come close. Wanting to stay near her, he tries to befriend her. He introduces himself as a ghost photographer and tells her he needs her help. But Bom, still angry about the rooftop situation, just scoffs at him.
How did she get into the studio when she wasn't dead? Until now, there has never been a living person who is not dead! Gi-ju is embarrassed by Bom's sudden appearance. She realizes that Gi-ju is the one who stole her precious home.
Seo Gi-ju is under a curse. Haunted by ghosts his entire life, he is fated to die at the age of 35. He is also the seventh-generation photographer of 'the Midnight Studio' that has been open only at night for over 100 years. Then, one day, about 100 days before his 35th birthday, he is in a situation where he has to find a new place to live and work due to the anger of a customer. Mrs. So helps him! She offers him her granddaughter Han Bom's old rooftop room and storage space, but only for 105 days. Gi-ju reopens his studio through the boiler room door behind the storage shed.
The truth behind both tragedies, long hidden in the dark, finally comes to light!
Bom regains her lost memories from the accident. She blames herself, believing Gi-won was hurt because of her. Gi-ju comforts her, and thanks to his support, Bom begins preparing to request the disclosure of information related to the villa murder case and the Tunnel accident.
After surviving a near-death experience, Gi-ju makes up his mind. He uses Hwang In-beom as bait to lure out Lee Hyeon-oh.
When Bom finds out that while she was thinking about their future, Gi-ju was quietly preparing for the end, she feels deeply betrayed. But the sudden reappearance of Kim Yoon-chul, the suspect in the 2019 villa murder case and the reason Bom quit being a prosecutor, forces the two to work together for the time being.
Gi-ju decides to share a future with Bom, and the two begin a secret relationship. They come to believe they are meant for each other. However, the evil spirit's threat to his life grows closer and closer.
Gi-ju manages to save Bom, who was possessed by a guest who became an evil spirit. Seeing him endure pain for her sake, Bom's heart begins to open even more.
Joo-ran visits Sang-eun and proposes they work together to uncover the truth about Jae-ho. Meanwhile, Sang-eun receives a call from Jae-ho. Watching their secret meeting from afar, Joo-ran becomes even more conflicted, unsure whether to trust Sang-eun or her own husband…
At Yoon-beom's funeral, Sang-eun shocks Joo-ran by saying, “Your husband killed mine.” From then on, Joo-ran begins to notice suspicious traces of Jae-ho's hidden life. Sang-eun, meanwhile, finds a secret phone Yoon-beom had hidden, which contains a photo of Jae-ho with a young girl. She begins scheming to blackmail Jae-ho for money.