So sayeth the synopsis:
Insidious is the terrifying story of a family who shortly after moving discover that dark spirits have possessed their home and that their son has inexplicably fallen into a coma. Trying to escape the haunting and save their son, they move again only to discover that it was not their house that was haunted.Not only does the trailer suggest the flick, which opens April 1, has the right balance between spooky and mega-freakout shocks, it also likely opens the door for a brand new horror franchise ala Saw.
Check out the trailer below:
(via Bloody Disgusting)