Blacksmith Mikael Kittilä lives a double life. Outwardly, he meets women and works as a construction worker. He secretly dates gay men whom he ties up and tortures.

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.