Surprisingly engaging zero-budget haunted house flick in which a middle-aged couple, recovering from the loss of their college-age son, moves into a house with a sordid past and believes they are being contacted by him. Stars middle-aged adults, not kids, for a change, which seems hokey at first but works out to its benefit. The performances are up and down but ultimately work well. Apparently they saved their entire budget for the tiny handful of really well-done special effects, and it was a great choice. Starts off seeming kind of iffy, could easily have gone into "Paranormal Activity"-caliber crap, but by the time it kicks into high gear ends up really effective, with some genuine creepiness along the way.