The Nightmare - Lars Kepler, Harper Collins

From the bestselling author of The Hypnotist and Stalker comes the second high-octane thriller featuring Detective Inspector Joona Linna He is an artist in terrorThe lifeless body of a young woman is discovered on an abandoned boat. A man is found hanging alone in his apartment. This is his masterpieceShould the deaths be treated as suicide or murder? Four people know the answer. But a killer wants them dead. And only one man can destroy itCan Detective Inspector Joona Linna keep them alive long enough to find out the truth?