Both films contain a lot of philosophy and religious culture in Korea and connect this to something mysterious and scary. The execution of the two films is also similar because they were done by the same director. If you want to know more about Korean culture, you can watch these two films!
Forgotten and Svaha have similiar nuance as they both are mystery-thriller and have neat plotting. Recommended to watch if you like one of it!
Both are about Buddhism and evil thing, the story also involve about getting rid of evil and have the same creepy and eerie vibe, also the "unexplain" murder case that happens cause of the evil.
Both of them are extremely dark that tell stories of cults and twisted faiths. Each one makes you feel unsettled inside.
Both are horror films that tackle religious themes and doctrine. As the main characters delve deeper, they second guess who and what is truly evil.