 The couple's taciturn grounds man Peter (Al Cliver) is happy enough looking after the slavering pack of dogs the couple own.But the maid Maria (Carla Cassola) is becoming more and more suspicious of her sinister employers that they are hiding something.Sure enough, she discovers the dead bodies of a money-grabbing nephew (Paolo Bernardi) and his wife (Francesco De Rose) lying preserved in open coffins in the wine cellar.