Horror thriller: In which the main character is put in danger and their main enemies are unrealistic creatures in which they must destroy to achieve their goal.

Example:

The Evil Dead is a 1981 US horror/thriller film written and directed by Sam Raimi, starring Bruce Campbell, Ellen Sandweiss and Betsy Baker. The film is a story of five college students vacationing in an isolated cabin in a wooded area. Their vacation becomes gruesome when they find an audiotape that releases evil spirits.