: Gibson arrives in Belfast and identifies links between unsolved murders.

: The net begins to close around Spector, leading to a dramatic confession and a decision that intertwines his fate with Gibson's. Critical Reception

: Detective Superintendent Stella Gibson (Anderson), a senior officer from the London Metropolitan Police, is brought in to review a stalled murder investigation. She soon realizes they are dealing with a serial killer.

: Spector continues his spree while Gibson faces professional fallout from a reckless decision.

: Gibson takes full control of the investigation as Spector’s latest "perfect kill" goes awry, pushing him to find a new victim.

The series is a psychological thriller set in , following a high-stakes "cat and mouse" game between a detective and a serial killer. Unlike many procedurals, the killer’s identity is known to the audience from the very beginning.

: Paul Spector (Dornan) is a seemingly normal bereavement counselor and father who leads a double life stalking and murdering young, professional women. Structure : Season 1 consists of 5 episodes . Key Episode Highlights

: Critics have praised Anderson’s "disciplined performance" and Dornan’s ability to create a "complex, fearsome presence".