A few weeks have passed since David Neumann has said goodbye by the remote lake to his daughter Isabella. Now he starts the rest of the story in the form of a diary of his daughter to write down. A year has passed since Clara's death and David is, plagued by nightmares of the night after night, working together with the police, led by Theresa Prager in search of his mother. But how far will David go, when he finds his mother ? A long dark road is ahead of him, in which he has to be careful not to lose his humanity and he will soon realize that revenge is not all that matters ...