These 7 K-Dramas Will Keep You Guessing Who Villain Is Until Very End

The crime genre is quite a hit in K-dramaland. There is a wide variety of murder mysteries, police procedurals, and whodunits on South Korean television. However, for a veteran fan of the genre, cracking the main puzzle and identifying the bad guy in some of these stories may be too easy.

If you're specifically looking for shows that keep you guessing who the bad guy is right up until the final episode, this is your lucky day. We've compiled a list of 7 fan-recommended K-dramas that do just that. Here they are ranked according to their IMDb score.

Voice (2017-2021)

IMDb rating: 7.6/10

Where to stream: Prime Video, Paramount+, Tubi

The show consists of four seasons, each of which deals with a major serial murder case and a handful of smaller mysteries. The main protagonist throughout all seasons is a policewoman who was born with perfect psycho-acoustic abilities. Thanks to her talent, she is now a voice profiler who solves complex cases over the emergency line.

365: Repeat the Year (2020)

IMDb rating: 7.9/10

Where to stream: Prime Video, Viki, Kocowa

Ten people are given the magical ability to go back one year and rewrite their destiny. But as they do so, they begin to die one by one at the hands of a mysterious killer. Now the survivors must figure out who is targeting them before it is too late and they are all murdered.

Blind (2022)

IMDb rating: 8.0/10

Where to stream: Prime Video, Viki, TVING

When a group of jurors working on a case are mysteriously killed one by one, the prime suspect (a homicide detective), one of the jurors (a social worker), and a judge team up to find out who and why is committing these murders and save their own lives.

Life on Mars (2018)

IMDb rating: 8.1/10

Where to stream: Disney+

A genius forensic scientist finds himself trapped in the year 1988, where his scientific methods are very limited. He is assigned to a local police force, and it seems he must solve their big serial murder case to return home.

Beyond Evil (2021)

IMDb rating: 8.1/10

Where to stream: Netflix, Prime Video, Viki

Two decades ago, the protagonist suffered the loss of his sister. He grew up to be a cop and never abandoned hope of catching the killer. When a young detective joins the force, the old case gets a boost, but there are too many suspects to proceed with the usual methods.

The Worst of Evil (2023)

IMDb rating: 8.3/10

Where to stream: Hulu, Disney+

An undercover cop infiltrates a dangerous international drug ring to investigate from the inside where a new deadly drug is coming from. Imagine his shock when he discovers that his own wife (who is also a cop) is part of the operation and has past ties to the crime boss.

Signal (2016)

IMDb rating: 8.5/10

Where to stream: Prime Video, Tubi, WeTV, iQIYI

The show mixes sci-fi with whodunit tropes. One day, a criminal profiler stumbles across a walkie-talkie that surprisingly has a detective from the past on the other end. Together they start to crack cold cases, including the one that changed the lead's life as a child.