Horror cinema has been defined through use of a series of tropes which, when combined, can create stories that genuinely terrify their viewers. Ranging from slashers chasing college kids in the woods to eerie cases of haunted houses, tension and suspense have been key to this. However, some horror movies have sacrificed being genuinely scary in favor of gory, bloody demonstrations of violence. Some movies remain a demonstration of how tension builds horror better than anything else.
Source：https://www.cbr.com/horror-movies-suspense-vs-gore/
