In a tense psychological thriller set in modern Seoul, Nine Puzzle (2025) follows profiler Lee Hye-jin (Kim Da Mi), a genius investigator with a mysterious past, and detective Kang In-ho (Son Suk Ku), who is haunted by an unsolved murder case. When a new string of cryptic killings emerges—each linked by a numerical “puzzle”—they are forced to team up, despite their clashing styles and dark secrets.

As the investigation unfolds, Hye-jin begins to recognize patterns that connect to a childhood trauma she’s long suppressed. With pressure mounting and the body count rising, the duo must solve the puzzle before the killer strikes again. But as they get closer to the truth, the line between hunter and hunted begins to blur—leading to a shocking revelation that will change everything they believe about justice and memory.
Packed with twists, haunting visuals, and deeply emotional performances, Nine Puzzle explores the human mind’s fragile grip on truth. The film marks a gripping collaboration between two of Korea’s brightest stars.