Shades of Chainsaw (or Motel Hell!).........
Andrzej Chranowski, 34, stabbed his housemate Christine Seymour, 60, with a pair of surgical scissors as she spoke to a friend on a mobile phone outside her home in Spalding, Lincs.
But as she lay critically injured Chranowski, a migrant worker from Poland, then pushed his hands inside her chest and attempted to tear her heart out.
Story in the link.