2 of 3 people found the following review helpful
This review is from: The Purge [DVD]  (DVD)
I have watched various house invasion movies, but this is up there with The Strangers (q.v) Basically, as advertised in trailers and the cover itself, all crime in the US is legal for a 12 hour period, on one night every year. The film (spoiler) centres around a family, the husband of which has developed a security system whom he has sold to his neighbours, amongst many other people. When their son, who is puzzled by the Purge, gives refuge to a stranger, a group of Purgists? arrive at the house, demanding that the stranger be released. If not, it's basically open season. Thus the family are plunged into a fight for survival. I was totally surprised by the identities of the purgists. The film is very violent at times, but also very entertaining, right up to the not-so-surprising twist at the end.