Add Yahoo as a preferred source to see more of our stories on Google. To me, a good scary movie has a little bit of all of the above, which is why I’m recommending you watch Session 9 this Halloween.

What makes a movie “scary”? The amount of blood and gore shown onscreen, like in Sinners? The unpredictable jump scares that The Conjuring films execute so well at? Or is it the mere suggestion of an ...