A killer within reach.
When the Police Service of Northern Ireland are unable to close a case after 28 days, Detective Superintendent Stella Gibson of the Metropolitan Police Service is called in to review the case. Under her new leadership, the local detectives must track down and stop a serial killer who is terrorising the city of Belfast.

Episode One (Episode 1) 7.7
Writer: Allan Cubitt
Air date: 2014-11-09
Runtime: 60 min
Overview: Gibson continues her hunt for the killer.

Episode Two (Episode 2) 8.0
Writer: Allan Cubitt
Air date: 2014-11-16
Runtime: 60 min
Overview: Stella Gibson realises that her mistakes have put the life of Rose Stagg in danger.

Episode Three (Episode 3) 7.8
Writer: Allan Cubitt
Air date: 2014-11-23
Runtime: 59 min
Overview: After the breakthrough identifying the killer, Stella Gibson must play a waiting game.

Episode Four (Episode 4) 8.0
Writer: Allan Cubitt
Air date: 2014-11-30
Runtime: 60 min
Overview: A shocking revelation proves how terrifyingly manipulative Paul Spector can be.

Episode Five (Episode 5) 7.8
Writer: Allan Cubitt
Air date: 2014-12-07
Runtime: 59 min
Overview: As the investigation tightens around Paul Spector, he makes a bold break for cover.

Episode Six (Episode 6) 8.4
Writer: Allan Cubitt
Air date: 2014-12-17
Runtime: 90 min
Overview: With Paul Spector in custody, DSI Gibson searches for clues to help find Rose Stagg.