Insidious (2010)

James Wan redefined modern ghost stories with Insidious, a nerve-jangling journey into the supernatural. Patrick Wilson and Rose Byrne star as parents whose son slips into a mysterious coma, becoming trapped in a spiritual realm called “The Further.” With spine-chilling sound design and creative scares, it became an instant classic. Wan said his goal was to “make a film that attacks your nerves, not your stomach.” It spawned a billion-dollar franchise and reignited mainstream haunted-house horror.