The murder of a female GP in a rural playground in front of numerous witnesses draws a group of detectives into an ever-darkening mystery that takes them across Europe, aided by mysterious notes sent by the "Ghost Detective".
Indira Varma
Nina Suresh
Robert Glenister
Bobby Day
Neil Stuke
Michael Niles
Christiane Paul
Linda Felber
Lesley Sharp
Lucy Cannonbury
Anjli Mohindra
Meghan Waters
Dino Fetscher
Alec Wayfield
Michael Maloney
Dr Crowley
Dominik Tiefenthaler
Walti Merian
