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What is the plot?
Han Bom begins episode 12 by fully recovering the memory of the tunnel crash from her childhood. She remembers that Seo Ki-joo's uncle, Kim Yoon-cheol, pulled her to safety after the accident involving her parents, and that the same car came back and struck Yoon-cheol again when he was trying to protect her. She also remembers that the people responsible later disposed of Yoon-cheol's body, which is why his fate remained unknown for years.
With those memories returned, Bom and Ki-joo focus on reconnecting the old accident to the present. Bom connects Yoon-cheol's killers to the group of men who had been tied to Kim Yoon-cheol's old circle, but she still cannot fully explain how Lee Hyeon-oh fits into the case. She requests access to her parents' accident records, but Hyeon-oh refuses to provide them.
Ki-joo separately begins investigating the case on his side and asks Assistant Go and Baek Nam-gu to help him dig into the past. At the same time, the episode briefly shows a lighter thread: Assistant Go goes on a date with Bom's friend, who is learning about ghosts and the studio.
Late at night, Nam-gu follows a distraught Na-rae as she heads toward a temple. The episode also shows Sung-ho being lured in after Ji-won changes her profile and announces that she is going on a blind date.
As the investigation continues, Ki-joo reaches a house where he finds paper-cutting crafts connected to his uncle's missing case. The discovery shocks him because it suggests someone has been preserving or hiding traces of Yoon-cheol's disappearance for years.
The episode ends on a grim note when Ki-joo appears to be taking his last breath, leaving the outcome of his curse and the case unresolved at that moment.
What is the ending?
The ending of The Midnight Studio is bittersweet at first, but it turns into a quiet, happy reunion. Ki-Joo gives up his chance to save himself in order to save Bom, disappears into the netherworld for a time, and then later finds his way back to her so they can be together again.
In the final stretch, Ki-Joo is pulled deeper into the supernatural conflict around the camera and the curse, while Bom's memories and the old case finally come into focus. The episode builds toward the moment where Ki-Joo and Bom are separated by death and the ghost world, but Ki-Joo keeps choosing Bom's safety over his own.
Scene by scene, the ending moves like this:
Ki-Joo and Assistant Go are out following a lead connected to the old case involving Ki-Joo's uncle. They go door to door at an apartment complex, and Ki-Joo ends up in an empty house where he finds paper cuttings tied to that missing case. At the same time, Bom is heading to the amusement park for a Ferris wheel meeting with Ki-Joo, and while she is there, her memory of the car accident comes back more clearly.
Bom remembers there were three people in the car that caused the crash, and the episode points toward the son of Lee Hyeon-Oh as the third person involved. Ki-Joo, meanwhile, hears police officer Lee Seon-Ho's voice and turns to see a dangerous evil ghost shadowing him, which leaves him shocked and confused.
After that, Ki-Joo goes to meet Bom near the Ferris wheel. Bom realizes that something is wrong and understands that he has become a ghost. Ki-Joo apologizes to her and says, "I'm sorry. I promised not to make you cry again." That moment is the emotional center of the ending: he is no longer fully part of the living world, but he still comes to her first.
Then the final danger becomes physical and immediate. An ambulance rushes Ki-Joo to the hospital covered in blood, and the cardiac monitor later shows a straight line while Assistant Go cries beside him. In the broader ending described by recaps of the finale, Ki-Joo's fate is tied to the curse and the netherworld: he is separated from the living, spends time trapped away from Bom, and eventually returns after making the choice to put her life first.
Bom's fate is that she survives, the curse on her wrist eventually disappears, and she is left waiting through the period when Ki-Joo is gone. The ending ultimately brings her back together with him, and the final images show the core group taking a normal photograph together, which marks a return to ordinary life after all the supernatural danger.
Assistant Go's fate is simpler but still important: he stays alive, remains at Ki-Joo's side through the crisis, and is shown crying at the hospital when Ki-Joo's condition becomes critical. The later ending material also shows him continuing as part of the group's life after the supernatural conflict is resolved.
Ji-Won and Sung-Ho also end the story alive and still connected to the studio's circle, appearing in the final group photo session with Ki-Joo and Bom. The ending uses that shared photograph to show that the main survivors have moved out of the danger and into a calmer life together.
If you want, I can also give you a shorter "just the ending" version with only the final fate of each main character.
Is there a post-credit scene?
Yes. The episode's ending functions like a post-credits-style coda: Ki-joo meets Han-bom near the Ferris wheel, and she realizes he has become a ghost; he apologizes for making her cry again. At the same time, an ambulance rushes Ki-joo to the hospital, where he is shown covered in blood, and the final image is a cardiac monitor flatlining as Assistant Go cries beside him.
I should note that the available sources describe this as the episode's ending, not as a separate after-credits tag, so I cannot confirm there is an additional post-credits scene beyond that final sequence from the provided results.
What exactly happens when Han Bom remembers the tunnel crash and Ki-won’s death in episode 12?
In episode 12, Bom's buried memory returns in fragments tied to the tunnel crash that killed her parents. The key revelation is that Ki-won was on the scene while searching for something he called "Death's Pass," and he used that explanation to distract Bom while handing her the Midnight Studio camera and telling her to hold it so she would stay safe while he went to call for help. While he was away, the original hit-and-run perpetrators came back for a dropped cell phone and deliberately ran Ki-won over to silence him as a witness.
Why was Ki-joo investigating the old accident case in episode 12?
Ki-joo is investigating because episode 12 links Bom's resurfaced memory to his own family history and to the curse around the Midnight Studio camera. He and Bom are trying to uncover the truth about the old case and find a way to lift Ki-joo's curse at the same time. The episode specifically connects the accident to his missing uncle, who had saved Bom during the crash but was killed by the perpetrators and then made to disappear for 20 years.
What is the connection between Han Bom, Ki-joo’s uncle, and the old accident in episode 12?
Episode 12 reveals that Bom's survival and Ki-joo's family are tied to the same crash. Bom remembers that Ki-joo's uncle saved her, but the culprit's car killed him afterward, and his body was hidden so nobody knew what happened to him for 20 years. The episode also shows Bom learning that the dead friends of Kim Yoon-cheol were the culprits, which deepens the connection between the crash, Ki-joo's uncle, and the later murders.
Who was the third person in the car that caused the accident in episode 12?
Bom remembers that there were three people in the car responsible for the accident, and episode 12 narrows suspicion toward Lee Hyeon-Oh's family connection. As Ki-joo notices photo albums in the empty apartment, the episode implies that the third culprit was Lee Hyeon-Oh's son.
What happens to Ki-joo at the end of episode 12, and why does it matter for his character?
The ending of episode 12 shows Ki-joo visiting Bom near the Ferris wheel, where Bom realizes that he has become a ghost. This matters because the episode has already been building around his curse and the danger surrounding his investigations, so his ghostly state turns the emotional stakes inward: instead of only chasing the truth, Ki-joo himself is now crossing the boundary he has spent the series fighting.
Is this family friendly?
No, it is not especially family-friendly for young children. The show is rated PG-13 / 16+ in the sources I found, and episode 12 is part of a supernatural romance-drama that includes some content that may bother sensitive viewers.
Potentially objectionable or upsetting elements in episode 12 include: - Romantic kissing / sexual content: episode 12 includes a kissing scene, and the series overall is described as having implied sex rather than explicit nudity. - Strong emotional distress: the episode centers on characters in visibly upset, distraught, or anxious states, which may be heavy for younger viewers. - Supernatural curse and death-related themes: the show's premise involves dead clients and a potentially fatal family curse, so the episode can include ominous or unsettling material tied to that premise. - Alcohol and smoking references: the series has a notable amount of drinking and smoking, which may be a concern for some families. - Intense or frightening moments: the show is rated as having at least mild frightening content overall, so there may be suspenseful or tense scenes even if episode 12 is not especially graphic.
If you want, I can also give you a very short "kid-suitability verdict" for different age ranges, like under 10, 10–13, and teens.