What does it take for a man, a very nice man, a very very nice man, to turn bad...
Pete Thompson is a very very nice man in love with (in no particular order) his wife, his car and roundabouts. Things start to go wrong for Pete (the inventor of roundabout sponsorship) when he loses his job and his wife's affections. Attempting to recover his situation just further develops his mountain of pain.
What does it take to turn this once very very nice man into a mass murdering maniac? Simple, he is the only bloke in the known universe (certified by NASA) to have blown Anne Frank's trumpet..