What do a people-smuggler, a photogenic young schoolteacher, a missing teenager and a father/son pair have in common? Alas, their remains are the most reliable witnesses of how they died, and if they were murdered who killed them. Following grisly clues, Dr. Nikki Alexander (Emilia Fox) and her team of forensic pathologists delve into London's illegal immigrant community, a toxic media storm, families camped on a riverbank, a shocking car accident...