When a murder in Belfast remains unsolved after 28 days, DSI Stella Gibson is called in to review the case.

DSI Stella Gibson's worst fears are realised as Spector's murder spree in Belfast continues and she faces very real consequences after a reckless decision.

As DSI Stella Gibson takes control of the hunt for the serial killer striking women in Belfast, the realisation that his perfect kill is tainted pushes Spector into looking for his next victim.

When Eastwood's investigation into Olson's murder throws open some uncomfortable truths for Burns, Gibson comes under increased pressure in her hunt for Belfast's killer.

The killer's latest attack gives Gibson renewed impetus. As the net appears to be closing in, Spector makes a dramatic confession and a decision that binds his fate to Gibson.

Gibson continues her hunt for the killer.

Stella Gibson realises that her mistakes have put the life of Rose Stagg in danger.

After the breakthrough identifying the killer, Stella Gibson must play a waiting game.

A shocking revelation proves how terrifyingly manipulative Paul Spector can be.

As the investigation tightens around Paul Spector, he makes a bold break for cover.

With Paul Spector in custody, DSI Gibson searches for clues to help find Rose Stagg.