On a summer's day, Johanne Vik arrives at the home of her friends Jon and Ellen Mohr and is greeted by a scene of devastation: their young son, left unattended, has tragically fallen to his death. Meanwhile, Oslo is under attack. An explosion has torn the city apart and newly-qualified police officer Henrik Holme is the only one available to attend the Mohr household. As Holme investigates, he casts doubt on the claim that the death was a tragic accident and calls upon Johanne's profiling expertise to understand what really happened. But neither realise that those involved are determined to hide the truth – no matter what. Before the summer is over, more shocking deaths will occur…
