A veteran chauffeur, his wife and their kid wonders, one fluent in English, the other an art wiz with expert computer skills and mastermind deception skills, are all unemployed (!) and lives in a scummy basement, where they fold pizza boxes for peanuts. With wildly implausible easy they con a rich family (ridiculous caricatures of rich people who apparently got rich by being soooo stupid) into employing them. First the son, then the sister, then the father ... you get it ... sleep-inducing snail's pace to the predictable setup where the entire family has leeched their way into the rich people's home. Once inside the home, the rich family goes on a vacation, and the poor family literally start ripping the home apart in a stupid drunken frenzy?? The old housekeeper (which they got rid of in a horrible way, causing a dangerous allergic reaction) shows up, and for some reason they let her in?? Turns out the old housekeeper is keeping her husband in a hidden basement under the house, where he has been living for four years (best explanation to why is that he is hiding from loan sharks). He has been flickering the lights morse code-style which the small boy of the house has deciphered (but he never tells anyone and it is therefore utterly pointless). Each family now knows each other's secret, so they are in a stalemate. Right? Movie apparently forgets this, an instead we end up with a big fight. A lot of nonsense. A flood. Then a lot more violence. Poor father kills wealthy father (because of his arrogance towards the poor which have a certain odor), then leaves his own two wounded children to die, running to hide in the basement (he would actually have to step over his son, who lies half dead in an enormous puddle of blood in order to get to the basement, but I think the director forgot this - add it to the five million other plot holes!). At some point near the ending - where the movie takes another tonal shift towards the sentimental - I realized that we are actually supposed to sympathize with the poor family, despite how EVIl they have acted the entire movie ... This movie is wildly implausible, first half wildly predictable, full of weird tonal changes and plot holes. Everything is overly constructed to underline some muddled point about social inequality, but nothing really makes sense. I loved "Snowpiercer" but this is total crap.