Psychological thriller about a detective who embarks on a surreal murder investigation.
BBC One except Scotland, Scotland HD, Wales, Wales HD
BBC One Wales, Wales HD only
BBC One Scotland, Scotland HD only
2/6 Catherine's search for Tommy gains momentum when she receives a tip-off. (R)
A wheeler-dealer cop becomes entangled in a complex assassination conspiracy.
BBC One except Scotland, Scotland HD
1/6 A team of MI5 officers must do everything they can to stop a devastating Soviet plot.