When the investigation into a Belfast architect’s murder goes cold, Detective Superintendent Stella Gibson arrives from London to lend her expertise. At the same time, Paul Spector outwardly a grief counselor and family man, secretly a depraved killer, plans his next attack, on young lawyer Sarah Kay.

Crime drama series. 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.

Crime drama. As Stella Gibson takes control of the hunt for the serial killer, the realisation that his perfect kill is tainted pushes Spector into looking for his next victim.

Crime drama series set in Northern Ireland. Eastwood's investigation into Olson's murder throws open some uncomfortable truths for Burns.

Crime drama series. The killer's latest attack gives Gibson renewed impetus. Spector makes a dramatic confession and a decision that binds his fate to Gibson.

Crime drama series set in Northern Ireland. DSI Stella Gibson continues her challenging hunt for Paul Spector, the killer who hides in plain sight.