A highly respected Professor of Forensic Pathology at London University, Sam Ryan is in constant demand. Dedicated and driven, she wants to know about the person behind the dead body and how and why they died. Now she has two dynamic new colleagues to assist her: Dr Leo Dalton and junior pathologist Harry Cunningham. Mysteries facing the team include a severed arm, which exposes a police cover-up and prostitution ring; a seven-year-old corpse linked to a violent armed robbery; and the mass murder of a family, the investigation of which reunites Sam with a former love.