Olav is basically a tender-hearted but very lonely man, the victim of an incredibly dysfunctional upbringing by an alcoholic mother and an abusive father, but he has left that behind him for the most part. He reads almost constantly, has no close friends, but he does have a thoughtful and rich imagination.
His trouble comes when his boss, Oslo's chief drug king pin, tells Olav to find a way to kill his wife. But when Olav begins to watch her to determine how exactly to carry out the task, he becomes quite infatuated with her, and gets creative with the assignment in order to save her life.
And then it gets complicated fast.