Police detective Ben Westphall is burnt out and leading a quiet life in the North of Scotland. Things change when he is assigned to investigate the cold case of a UK national who disappeared in Estonia under mysterious circumstances and who, despite being declared dead, has re-appeared, claiming to have been held for over a decade, various body parts having been harvested during that time. Westphall travels to Estonia, chasing leads and shadows that may lead to an international drugs and organ trafficking conspiracy.