Definitely it's not a movie for everyone! You need to have a strong stomach to see this film until the end!
The plot is about a Hungarian family and the way it develops over three generations; and what crazy family I must say! From the first to the last generation all we see is a bunch of foolish people doing foolish things! The guy from the first generation is a sexual maniac soldier that even does a sexual act with a dead pig imagining he's doing it with a fat old lady
The guy of the second generation is a fat (but a really big one!) champion of food contests that eats kilos of food in few minutes to throw up it all a bit later in order to eat some more kilos again! The third guy, son of the last one, irony of destiny, doesn't seems at all to his father (and his mother too), because he's thin as a bone... He works as an embalmer and he's the only person who keeps seeing his father, now a vegetative mount of fat flesh
We can see by these short examples that this movie is actually a little bit mad, but that's exactly its most valuable feature! We can feel the irony since the first to the last minute of the movie, and its dark humour mixed with some gore scenes makes it a really dark comedy! It's almost unique by its madness since we can't find many movies with this kind of roughness. One in which we can find some similarity, about the dysfunctional family's feature, is probably "Amarcord", but there aren't too many we can compare to this one!