I'm trying to find the title of a german language movie, filmed in vienna about a family who becomes weary of city life and decides to move out to the country.  They don't get their dreamhouse and mom take the kids to visit relatives.  The husband goes mental and transforms his city apartment into a farm, lugging in dirt and baby chicks to grow his own food. The family returns and there's a bloodbath, but it's all in his mind... any help on the title..I'd love to see it again!