This is one of those stories that lends itself to all sorts of tasteless jokes, but sometimes you just have to let things speak for themselves.
According to this story in The Sun, diners at a vegetarian restaurant found what appeared to be pieces of meat in their noodle dishes. The truth turned out to be much more horrific as investigators found blood splattered in the kitchen and bits of flesh on the floor. Further investigation turned up the rotting corpse of a 61-year-old man in the septic tank.
The victim was a restaurant regular, who was last seen at the venue with his brother. Apparently, he was murdered and shoved in the septic tank, after some of his flesh was removed to be cooked in dishes served to customers.
The owner of the restaurant had already disappeared and was still at large at this writing.