Insidious is a 2010 supernatural horror film directed by James Wan, and its unsettling score by Joseph Bishara helped define the movie's tense sound. Short violin stings in that style became popular in horror edits, meme jump scares, and creepy reaction clips across social platforms. People still use this kind of audio because it delivers instant dread in just a few seconds. It is often grouped with other tension-building sounds like the Prowler Sound Effect for ominous reveals and suspenseful cuts.