OK, it's not a gem or an unforgettable story, but at least provides some good tension. A wealthy family is attacked by a group of human monsters in a Sao Paulo suburbia. They rape the sexually unsatisfied housewife and turn everybody's life into a mess. The plot is not unique (Desperate hours has two American versions and we can't forget the German Funny Games, which has the same story), but the movie has something brutal and funny that called my attention. Worth seeing.