Here is the official synopsis:
Josh (Patrick Wilson) and Renai (Rose Byrne) have a happy family with their three young children. When tragedy strikes their young son, Josh and Renai begin to experience things that science cannot explain.
Screenwriter Leigh Whannell penned several of the Saw films, and director James Wan directed two of the earlier Saw movies.
With a title like Insidious you expect this movie to be super creepy. The clip delivers on that expectation.
Watch the clip entitled, “What is it?” after the jump.