Despite the fact that Haunters is a movie and Aftermath a web-drama (with a second season), if you liked one you'd probably like the other too. Both feature the fight between two people with similar mysterious supernatural powers fighting each other.

A film also from Yoo Ha doing what he does best. Both films are set on the past, but the main lead's story are different.

Both from the same director and though they don't have the exact same approach, it is possible to see the director's style and his progression as well between the movies. Both movies has a romantic approach and talk about the disappointment in the main lead's life, both movies follow the main leads up close, sometimes from a thoughts-on perspective.

Despite the difference of media, Tong being a web-drama and Gangster High being a movie, both have their stories centered in High School students whom gets involved with outlaw lifestyle.

Both are better at the supernatural school themed plot - in their own case - then one can imagine.

School themed supernatural plots, "Whispering Corridors 3" is the most light from the franchise and is a good match to Nightmare Teacher.

Both are supernatural, mystery, and school themed. With different main plot, but very alike in many other ways.