PI Varg Veum has returned to duty following a stint in rehab, but his new composure and resolution are soon threatened when three complex cases arrive on his desk in quick succession. A man is found dead in an elite swimming pool and a young woman has gone missing. Most chillingly, Varg Veum is asked to investigate the 'Camilla Case': an eight-year-old cold case involving the disappearance of a little girl, who was never found. As the threads of these three apparently unrelated cases come together, against the backdrop of a series of shocking environmental crimes, Varg Veum faces the most challenging, traumatic investigation of his career.