The story of British serial killer John Christie, who committed most or all of his crimes in the titular terraced house, and the miscarriage of justice involving Timothy Evans.
In Bardem, the Coens give us the coldest serial killer since Richard Attenborough's turn as real-life murderer John Christie in 10 Rillington Place (1971).
As Hot Fuzz was about all about bringing a Micheal Bay Bad Boys sensibility to the quiet English countryside for giggles, only to disguise what is in effect, a pithy satirical remake of The Wicker Man, I would argue here that there is a sly 10 Rillington Place riff playing out in the background.