The Water's Edge

A couple out walking in the woods discover the dead body of a half-naked boy.
To Kristine's horror her husband begins to take photographs of the corpse on his mobile phone, but this proves only the beginning of his obsession with the case.
Inspector Sejer is called to the scene but he can find no immediate cause of death. And who was the agitated man the couple saw moments before their discovery? Then, a second boy goes missing, and the once peaceful community is left deeply shaken.
Is there a killer within their midst?