Every horror film is different, each has a different genre, some are about the supernatural, ghosts and possessions and then there is natural horror where there is a murderer which is human or animal. Personally I find the supernatural horror films a lot scarier as the character tends to be unknown and this mystery makes you feel scared of the character. There are also horror films that use different actors which change the type of horror it is, for instance a teen horror uses teenagers to be the actors who are possessed or murdered throughout the film.