is a supernatural horror film directed by James Wan and written by Leigh Whannell. It is credited with revitalizing the "haunted house" genre by shifting the focus from haunted locations to haunted people. Rotten Tomatoes Insidious (2010)

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"Insidious" was directed by and written by Leigh Whannell , the visionary duo behind the original "Saw" (2004) franchise. After establishing themselves with the gritty, visceral "torture porn" subgenre, Wan and Whannell sought to create something different: a return to classical, atmospheric horror that relies on suspense, dread, and practical effects rather than excessive gore. The film's primary setting—an idyllic suburban home—serves as the perfect backdrop for a terrifying exploration of the unknown.