The Strangers: Prey at Night is a surprisingly effective film that overcomes a slow, uninteresting opening act with an intensive, no-holding-back series of violent events. The killers are frightening, silent machines of mayhem, which allows the emphasis to remain on the grotesque violence. It's very atmospheric and smartly scored, too. Don't give up during the first act. The second and third act payoffs are well worth the wait. Universal's Blu-ray is fine, featuring solid enough video under the movie's overwhelming dark constraints, excellent audio, and a handful or throwaway extras. Recommended.