Lars Kepler is the pseudonym for a literary couple who live and write in Sweden. I have been unable to locate much additional info on line but will keep looking.
My Opinion: I have read the Hypnotist and just finished reading reading The Nightmare. The Nightmare was truly one of those books that I did not want to put down and didn't for the last 100 pages. If you really like mysteries and find their portrayal of Scandinavian culture interesting I heartily recommend their books and I will be reading the next one soon. Just finished the Fire Witness and it is just as good as the previous 2 I read., just finished the Rabbit Hunter. Very good story. Hope they write another soon.
Hypnotisören (The Hypnotist, 2009) X
Paganinikontraktet (The Nightmare, 2010) X
Eldvittnet (The Fire Witness, 2011) X
Sandmannen (The Sandman, 2012) X
Stalker (2014)· Great read. 8/2019
Kaninjägaren (2016) (English: The Rabbit Hunter)[21] great read/. 7/20
https://en.wikipedia.org/wiki/Lars_Kepler