Nine Puzzles Ending Explained: Disney+’s Korean thriller is not your average murder mystery. With every new instalment, it draws its audience deeper into a labyrinth of psychological games and hidden traumas, and an enigmatic series of murders. And what starts out as a whodunit becomes intensely personal and emotional. When some of the pieces of the puzzle appear at crime scenes, I-na is compelled to face an ugly past she was intent on leaving behind.
Directed by Yoon Jong-bin and written by Lee Eun-mi, the series features Kim Da-mi as profiler Yun I-na, and Son Suk-ku as Kim Han-saem. The series Nine Puzzles (나인 퍼즐) also includes Park Gyu-young, Hyun Bong-sik, Ji Jin-hee, Kim Sung-kyun, Kwak Ja-hyoung, Kim Do-geon, Lee Joo-young, Jeong Man-sik, Jang Kyug-su, and others.
Now that we know what the series is about, let’s deconstruct what the Nine Puzzles kdrama conclusion actually signifies, what awaits, what ties to everything, and what the last scenes imply in relation to the possibility of Season 2.

The series starts with taking us ten years ago, when a teenager I-na, discovered the body of her uncle in their sitting room. What would have been the beginning of her recovery was turned into a nightmare when she was made the primary suspect in the murder. The case remained unsolved, and all I-na received for her trouble was a soiled reputation and a reconstructed personality that had her mature into the woman she is today.
Now a profiler battling with a reputation as génial but also demanding, I-na is pulled back into a world she has attempted to escape when a series of murders starts to have parallels with her uncle’s still-opened murder. Worse yet, the chief investigator is no less than Detective Kim Han-saem, the man who had brushed her off as some sort of female Johnny-come-lately and charged her with murder.
The reunion of the two is anything but friendly. Han-saem is consumed by remorse, and I-na has no desire to return to a past that still feels too fresh and raw. But as murder scenes begin to include cryptic puzzle pieces that seem to be designed specifically for her, she can’t help but face the past.

Nine Puzzles Ending Explained
The manner in which the killer deploys puzzle pieces to the crime scenes is perhaps the most brilliant aspect of Kdrama Nine Puzzles. Initially, they appear as cryptic messages or taunts. But as I-na gets deeper into it and starts to learn, these puzzles become personal — they are clues that have a relationship to her past, her trauma, and even the way she absorbs information.
Each of the victims is connected to a particular apartment in the One City complex in one way or another. More unsettling, each of them was involved in unsavoury activities involving the property. Slowly but surely, I-na and Han-saem find a terrifying pattern: The killings are not acts of senseless violence — they could be planned revenge killings.
The series keeps us guessing with a rotating cast of suspicious characters. From untrustworthy estate agents to politicians with dirty palms, it’s difficult to determine who is sincere and who has something to conceal. The pieces of the powerful jigsaw fall into place as suspicion tangles around artist Hwang In-chan, whose horrific sketches of the dead women provide him with the ideal alibi.

Did I-na Find the Killer?
In Nine Puzzles Episode 10, Hwang In-chan panicked and called the police to confess, although not to the murders. He admits to having created the illustrations, but insists that he never murdered anyone. He reveals that the real mastermind is the person he’s been sharing a roof with: Lee Seung-ju. This setup sets the stage for the program’s final act.
And we begin to learn about Lee Seung-ju slowly. She was abandoned at an amusement park as a child and grew up in an orphanage. But here’s the catch. It is found that her mother did not want to abandon her. She was the owner of a small diner—Seojin Diner—in a locality which had to be demolished to construct One City. She defied them, and influential men ordered goons to burn down the entire area. Seung-ju’s mother was murdered in the blaze.
For as long as she could remember, Seung-ju believed her mother did not love her. When she discovered for sure that her mother had been killed for standing up for what was hers, something within her broke. Fueled by sorrow, betrayal, and rage, she named all the names involved in the cover-up, and then she unleashed her deliberate revenge.

What was Jung-ho’s Role in the Mudder?
One indirectly but hugely impacting person in Seung-ju’s transition is Yang Jung-ho, the violent crimes unit 2 team chief, who used to work at Seojin Diner. He is the one who breaks the news to her of the truth of her mother’s death, unaware of the emotional bomb he was igniting. Her entire life, Seung-ju had convinced herself she had been unwanted. To find that he’d really cared for her — and that her mother was killed for refusing to move — had been too much. Jung-ho blames himself for putting her on a path of destruction, but as we come to understand slowly, Seung-ju was headed down that way anyway. His truth simply gave her the direction.
What happened in the End?
In Nine Puzzles Episode 11, Seung-ju takes I-na with her to see the last of her victims. She confesses that her killing frenzy was stopped when nobody could understand why. But now that she’s back with I-na, she didn’t struggle to recall her determination to return and complete what she had started. She wanted someone smart enough to understand her agony — and she thought I-na fit the bill.

While I-na attempted to stop the last killing, but she couldn’t. Seung-ju then escapes to Dream Land — yes, the theme park where her childhood was ruined. There, she takes poison and burns down a ride, self-immolating. It is a sad but meaningful conclusion. Dream Land is where she was abandoned. Now, it is where she is finally releasing.
What happened to I-na and Han-saem?
I-na quits when the case is closed. She’s exhausted, emotionally disturbed by everything she’s seen and heard. But Han-saem isn’t letting go of her. He arrives on her doorstep with another case — one that might be just as strange. I-na returns and provides him with another piece of the puzzle.
This final second isn’t just a cliffhanger — it’s a statement. The game can be over, but the puzzles are not. Whether or not this is a copycat, a new killer or something else isn’t yet certain.

Disney+ Nine Puzzles is a crime thriller, but it’s also a story of unresolved mourning, social breakdown and the damage caused when justice is denied. Seung-ju was not a monster when she was born; she was created by a system that failed to recognise her suffering. Sandwiched between victim and saviour, too, I-na walks a line that feels uncomfortably close to life itself: the thin line between compassion and responsibility.
The conclusion of the series is not simple there, it does not fill us with plain facts, and that is why it persists. It leaves us asking ourselves how many other Seung-ju’s exist — hurt, silenced, waiting to be heard.
Is Nine Puzzles Season 2 Happening?
There’s no confirmation yet, though the final scene certainly suggests that the story is not finished. That final puzzle piece might not simply be taunting — it might be the beginning of a whole new case. And if there is a Season 2, we’re more than ready to solve it all over again.
Also Read: Nine Puzzles Review: Twisted Crimes, Tormented Souls and a Thriller Done Right