Hello Monster: A Gripping Journey Through Memory and Mystery
In the realm of South Korean television, few genres captivate audiences quite like the psychological thriller. Hello Monster, also known by its literal translation I Remember You, is a standout 16-episode series that blends the intensity of a police procedural with a deeply personal mystery. Aired on KBS2 in the summer of 2015, the series weaves a complex web of trauma, lost memories, and a high-stakes game of cat and mouse.
The story follows Lee Hyun, a genius profiler who returns to South Korea after a specific case triggers long-buried memories. As he attempts to navigate his past, he finds himself entangled with Detective Cha Ji-an, who has been investigating him for some time. Their paths are linked by a dark history involving a mysterious criminal, Lee Joon Young, and a series of unsolved disappearances and murders that threaten to unravel the truth for both of them.

Key Facts
- Original Title: 너를 기억해 (Neoreul gieokhae)
- Genre: Thriller, Mystery, Police Procedural
- Original Network: KBS2
- Broadcast Period: June 22 – August 11, 2015
- Total Episodes: 16
- Lead Cast: Seo In-guk, Jang Na-ra, Choi Won-young, and Park Bo-gum
The Complex Web of Characters
The strength of Hello Monster lies in its layered character studies, where the line between hero and villain is often blurred.
The Protagonists
Lee Hyun (played by Seo In-guk) is a brilliant professor and profiler. His childhood was marked by isolation, as his father—a police inspector—attempted to prevent him from developing criminal tendencies by confining him. Now, he must confront the possibility that his long-lost brother might be a serial killer.
Cha Ji-an (played by Jang Na-ra) is a determined police inspector. Her life was shaped by the mysterious disappearance of her father alongside a convicted prisoner. Her pursuit of the truth leads her directly into the orbit of Lee Hyun.
The Antagonists and Shadows
Lee Joon-young (played by Choi Won-young) serves as a chilling central figure. A man who struggles to grasp the complexities of human emotion, he views his violent actions through a distorted lens of justification. He is a character who understands human thoughts perfectly but fails to comprehend the emotional weight of his crimes.
Jung Sun-ho / Lee Min (played by Park Bo-gum) provides one of the series' most impactful performances. Once a close childhood companion to Lee Hyun, he returns years later under a new identity, fueled by the misconception that he was abandoned by his brother.
Production and Critical Reception
Produced by CJ E&M, the series saw its first script reading in late April 2015. While the viewership ratings fluctuated throughout its run, the series earned significant acclaim for its acting, particularly from Park Bo-gum. His portrayal of Lee Min earned him both the Best Supporting Actor Award and the Popularity Award at the 29th KBS Drama Awards.
| Category | Details |
|---|---|
| Director(s) | Noh Sang-hoon, Kim Jin-won |
| Writer | Kwon Ki-young |
| Composer | Lee Pil-ho |
| Episodes | 16 |
| Running Time | Approximately 70 minutes per episode |
Frequently Asked Questions
What are the alternative titles for Hello Monster?
The series is also widely known by its literal translation, I Remember You.
Which awards did Park Bo-gum win for this series?
Park Bo-gum won the Best Supporting Actor Award and the Popularity Award at the 29th KBS Drama Awards for his performance.
What is the main genre of the show?
The show is categorized as a thriller, mystery, and police procedural.
How many episodes are in the series?
The series consists of 16 episodes.
Where can I watch Hello Monster?
The series originally aired on KBS2 and was later broadcast internationally, including on KBS World with English subtitles.