Sinister spirits invade the new home of a couple - played by Patrick Wilson (who becomes a television star this fall in CBS' "A Gifted Man") and Rose Byrne ("Damages") - but the source of the scares is surprising in this thriller, which made an impressive box-office showing on a small budget.
Big hint: Keep an eye on a younger family member (Ty Simpkins). Two veterans of the "Saw" franchise, director James Wan and screenwriter Leigh Whannell - who's a co-star here as well - worked on the film that also features Barbara Hershey ("Black Swan"). DVD extras: three "making-of" documentaries. *** (PG-13: AS, P, V) (Also on Blu-ray and Movies on Demand)