Insidious (2010) is a top horror film — masterfully crafted, genuinely terrifying, and historically significant. It deserves to be seen in the best possible quality, with the lights off and the volume up.
The story follows Josh (Patrick Wilson) and Renai Lambert (Rose Byrne), a married couple who move into a new home with their three children. Shortly after the move, their eldest son, Dalton (Ty Simpkins), falls off a ladder in the attic and enters an inexplicable, comatose state.