The movie starts with a bunch of friends watching a movie. Then, they receive a cassette tape and start playing that movie. In the movie they can see the sister of one of them covered in blood. They decide to go to rescue her.This is the start of the main plot of Zombie Ritual. A low, super low, budgeted movie that I enjoyed a lot. It is about zombies and I do tend to not like them, but the fact that they included a bunch of plot twists made me like it better.It is very gore, with zombies eating flesh and stuff, so if you do not like that kind of movies just skip it. By the way, it is in German with subtitles in English.It is also very short, like 1h10mints or so. So as said if you enjoy zombies, even if the movies are plain garbage, this one it is going to be somehow refreshing.