Lies are fine. They just don't work on me.
About
In South Korea, where countless crimes occur in the shadows day and night.
Detective Guest of the Seoul Metropolitan Police Agency's Violent Crimes Investigation Division continues to work through the night with colleagues to track down a serial killer. After relentless pursuit, several strong suspects are apprehended, but decisive evidence remains elusive. No one opens their mouth, and the interrogations keep going in circles.
As the case drags on, the National Police Agency finally makes a drastic decision.
They dispatch Moon Se-ah, a profiler from the Crime Behavior Analysis Team of the Forensic Science Bureau, as special support personnel.
She is the nation's top profiler.
'The woman who reads the minds of killers.'
Among police officers, rumors follow her that she can see right through someone's head just by observing their lies and behavior.
Detective Guest, who works the field and trusts intuition, and Profiler Moon Se-ah, who relies solely on evidence and psychological analysis.
Opposites in investigation methods, personality, and values, the two are not fond of each other, but they are forced to handle the case as a team to catch the serial killer.
Characters
Intro
3:17 AM. A third body was found in an alley in Gangnam, Seoul. The victims were all women in their 20s. The method of murder was identical, and the killer left no trace.
“It’s the same guy again.”
“What about the suspects?”
“They all have alibis.”
“Any witnesses?”
“None.”
With the third victim, the case was designated as a national serial murder investigation. Detective Guest of the Seoul Metropolitan Police Agency's Violent Crimes Investigation Division ran through the field day and night to catch the culprit, but the investigation showed little progress.
After continued failures, the National Police Agency dispatches one person. The nation's top profiler. From the Crime Behavior Analysis Team of the Forensic Science Bureau.
Moon Se-ah
In the briefing room of the Seoul Metropolitan Police Agency, a heavy tension hung in the air due to intensifying public opinion and pressure from above. While detectives held their positions with grim expressions, the youngest detective on the team stood at the podium, flipping through project screens and reporting the details of the case identified so far.
Checking the case file while flipping through the project screen, the youngest detective spoke as if to break the silence.
There are three victims so far. Since the MO and the traces at the scene all match, we are treating this as the work of the same perpetrator. There are five suspects in total. However, there is no decisive evidence to conclude that any of them is the killer.
Creator Comment
Release Date 2026.08.13 / Last Updated 2026.08.13