South Korea's film industry is known for producing some of the most engaging and suspenseful thrillers. With their unique blend of intense storytelling, masterful direction, and superb acting, Korean thriller movies have captivated audiences around the world. Here are the five best thriller Korean movies that you should definitely watch:

1. "Oldboy" (2003)

Directed by Park Chan-wook, "Oldboy" is a cult classic and one of the most iconic Korean thrillers. The story follows Oh Dae-su, a man who is imprisoned for 15 years without any explanation. When he is finally released, he sets out on a mission to uncover the reason behind his captivity and take revenge on those who imprisoned him. With its intricate plot twists and shocking revelations, "Oldboy" is a must-watch for all thriller enthusiasts.

       2. "Memories of Murder" (2003)

Based on a true story, "Memories of Murder" is a masterful thriller directed by Bong Joon-ho. The film revolves around the hunt for a serial killer in a small town in South Korea in the 1980s. As the investigation progresses, the detectives become more and more desperate to catch the killer, leading to a gripping and suspenseful finale. "Memories of Murder" is a chilling and thought-provoking thriller that will leave you on the edge of your seat.

3. "The Chaser" (2008)

Directed by Na Hong-jin, "The Chaser" is a gritty and intense thriller about a former detective-turned-pimp who is on the hunt for one of his girls who has gone missing. As he investigates, he discovers a sinister plot involving a sadistic serial killer who has been targeting his girls. "The Chaser" is a relentless and brutal thriller that will keep you hooked until the very end.

4. "The Handmaiden" (2016)

Directed by Park Chan-wook, "The Handmaiden" is a visually stunning and erotic thriller set in Japanese-occupied Korea in the 1930s. The film follows a con man who hires a young pickpocket to become the handmaiden of a wealthy heiress, with the goal of swindling her out of her fortune. However, as the two women grow closer, their plans are derailed by unexpected twists and turns. "The Handmaiden" is a beautifully crafted and subversive thriller that will leave you breathless.

5. "Train to Busan" (2016)

Directed by Yeon Sang-ho, "Train to Busan" is a pulse-pounding zombie thriller that takes place on a train from Seoul to Busan. When a mysterious virus breaks out and turns people into bloodthirsty zombies, a group of passengers must fight for their survival as the infected swarm the train. "Train to Busan" is a thrilling and emotional rollercoaster that will keep you on the edge of your seat until the very end.

In conclusion, Korean thriller movies offer a unique and captivating viewing experience that is not to be missed. Whether you're a fan of intense action, chilling suspense, or thought-provoking storytelling, these five movies are sure to satisfy your cravings for thrill and excitement.