Hollywood movie to be based on Australia's female cannibal Katherine Knight - who stabbed boyfriend 37 times, skinned and beheaded him then boiled his head for dinner with vegetables and gravy
- Katherine Knight is Australia's worst female killer and a cannibal
- She killed her boyfriend and cooked up his head with potatoes and gravy
- She hung his skin from a meat hook and set table places for his children
Did she EAT her victims?: Serial killer 'Granny Ripper' who kept diary of 11 people she decapitated may be a cannibal
- Tamara Samsonova, 68, is suspected of series of murders in St Petersburg
- The 'Granny Ripper' is thought to have dismembered, beheaded 11 victims
- Samsonova wrote down terrifying details of murders in her personal diary
- Police now fear she was also a cannibal and ate body parts of her victims