A seemingly ordinary and happily married guy hits his wife in the head with a sledgehammer and throws her and their baby into Dalby Quarry. What made him so cold-bloodedly murder those closest to him?

Bengt Karlsson was a popular night walker who was committed to women's safety. But behind the kind surface hid a sexually sadistic serial killer who had been preying on women his whole life.

On July 27, 2018, 28-year-old Johan Fallqvist decides to make his morbid fantasy come true - to stab a woman to death.