First broadcast: on BBC One LondonLatest broadcast: on BBC One Yorkshire
Police drama. New cop Joseph Walker is haunted by a past of violence and betrayal, which threatens his ability to hunt down a killer with a terrifying message. Show more
First broadcast: on BBC One LondonLatest broadcast: on BBC One Wales
Police drama. Joseph has now deciphered the killer's crazy message, but is becoming more deeply embroiled in a past which seems to resonate with the killer's mission. Show more