1. “Stranger” (also known as “Secret Forest”) (2017 & 2020): A prosecutor who cannot feel emotions teams up with a warm-hearted detective to uncover corruption and solve a series of murders.
![](https://occ-0-2794-990.1.nflxso.net/dnm/api/v6/6AYY37jfdO6hpXcMjf9Yu5cnmO0/AAAABcCT3OH547OA1YunfeoH0WIewliXZtUMUuZZ5AdOi1OnTjd4alBjGHfY0vDtqsMoQki-qY6UoZfezVdAkYb9iPOR5pDeIbSFSNc1.jpg?r=e38)
2. “Signal” (2016): Detectives from the present and a detective from the past communicate via a walkie-talkie to solve long-time unsolved cases.
![](https://flxt.tmsimg.com/assets/p14267577_b_h9_ae.jpg)
3. “Mouse” (2021): A suspense-filled drama about a rookie police officer who becomes entangled in a pursuit of a notorious serial killer.
![](https://kdramadiary.com/wp-content/uploads/2021/10/mouse-kdramadiary-scaled.jpg)
4. “Save Me” (2017): A chilling tale of a girl and her family who move to a small town and get involved with a religious cult.
![](https://m.media-amazon.com/images/M/MV5BNDY1NzE5YTQtMTc5My00YjQ5LTgyMmItMjQ3YTFiYzJhODQwXkEyXkFqcGdeQXVyMjIzMTQzNDE@._V1_.jpg)
5. “Tunnel” (2017): A detective from the 1980s gets transported to the present day while chasing a serial killer. He teams up with modern-day detectives to catch the murderer.
![](https://1.vikiplatform.com/c/33747c/Tunnel_Channel-Thumbnail_1560x872.jpg?x=b)
6. “Memories of the Alhambra” (2018-2019): Merging elements of thriller, fantasy, and augmented reality gaming, this drama follows a CEO and a hostel owner as they unravel mysterious events.
![](https://variety.com/wp-content/uploads/2018/11/mo-alhambra-netflix-cropped.jpg)
7. “Voice” (2017): A detective and a voice profiler join forces to catch a serial killer, focusing on the emergency call center and its efforts to track down criminals.
![](https://www.heavenofhorror.com/wp-content/uploads/2020/03/voice-season-1-netflix-review.jpg)
8. “Watcher” (2019): Revolving around three individuals, it explores their interconnected past and present as they get embroiled in a corrupt world.
![](https://1.vikiplatform.com/c/36620c/8820e43b51.jpg?x=b&a=0x0)
9. “The Lies Within” (2019): Following the sudden death of her father and the mysterious disappearance of her husband, a woman gets elected to the National Assembly and becomes involved in a greater political conspiracy.
![](https://cdn.i-scmp.com/sites/default/files/styles/1200x800/public/d8/images/methode/2019/12/11/9c82436c-1643-11ea-9462-4dd25a5b0420_image_hires_091316.jpg?itok=yEqfXCMl&v=1576026802)
10. “Kingdom” (2019 & 2020): A historical thriller with elements of horror. It’s about a crown prince who tries to save his kingdom from a mysterious plague that turns people into zombies.
![](https://m.media-amazon.com/images/M/MV5BOTEwODg0NjU2OF5BMl5BanBnXkFtZTgwNzc4ODYwNzM@._V1_.jpg)
11. “Flower of Evil” (2020): A suspense-filled tale of a man with a dark past who hides his true identity from his detective wife, leading to intense events when the truth begins to unravel.
![](https://cdn.i-scmp.com/sites/default/files/styles/1200x800/public/d8/images/methode/2020/09/21/d25f3610-fbbd-11ea-9bb5-57ca6b07e40a_image_hires_190407.jpg?itok=PbFmK3R3&v=1600686253)
12. “Train” (2020): A sci-fi crime thriller that involves parallel universes. A detective tries to solve a murder case, leading him to discover another world similar to his.
![](https://d2v0j9zp5u17nn.cloudfront.net/wp-content/uploads/2020/08/25140626/train01-1024x683.jpg)