How short horror movies should be made - a perfect depiction of a short moment in time.

As someone who hates math, this scenario truly felt like a nightmare. Don't know what was scarier - the dead bodies or the number on the paper. It also serves as a good representation of the emotional and psychological pressure Korean students need to face in terms of their education - each score might seem like a life or death situation.

The quality of the practical effects was amazing. We see so much poorly done CGI in horror movies in recent years, it's refreshing to see a well done gore in A Function.

It's definitely one of the best short horror movies I have seen. Highly recommend to everyone, as long as you can handle some gore.