Lars Kepler is the pseudonym of husband and wife team Alexandra Coelho Ahndoril and Alexander Ahndoril, authors of the Joona Linna series. With nine installments to date, the series has sold 15 million copies in 40 languages. From Wikipedia
Adapted from the bestselling Lars Kepler thrillers the untitled Apple TV+ show is overseen by Rowan Joffe and John Hlavin