Dr Larson begins his assessment on Spector, who opens up about the life he can remember before his amnesia, while the killer's legal team remain determined he will never stand trial, bringing Gibson's conduct under further scrutiny.

Stella starts questioning Paul.

Jim Burns visits an unfrocked paedophile, Father Jensen, in prison. Years ago he ran an orphanage attended by Spector, though then he was Peter Baldwin, later adopted by the Spectors, which...

From the hotel's CCTV Stella realizes that Spector entered her room and knows she is on to him. He is due to see Annie again but Stella has the visit cancelled and moves Annie to another ...

Stella tells her team that Spector is their prime suspect and has them interview Sally Anne. She is unable to alibi her husband for the Brawley murder and directs them to Katie, whose ...

Gibson realises that her mistakes have put the life of witness Rose Stagg in danger. Desperate to save Rose's life, she steps up the police investigation as serial killer Paul Spector continues to stalk Belfast's streets.

Gibson tries to help Spector's surviving victim remember her attackers identity; Spector deals with the loose ends he left behind.

Spector is frustrated and angry for he has failed in his perfect murder, killing Jack Brawley whilst Annie Brawley survives and is taken to hospital, where Stella tests for DNA on her body....

DCI Eastwood tells Burns that he took a call on Olson's phone which was made at a hotel by rogue cop Rob Breedlove, whom they link to Aaron Monroe, his businessman father Morgan and a ...

Stella learns from ACC Burns that the new victim is Jimmy Olson. She confesses to having had sex with him, unaware that he was married, and is advised by Burns to arm herself. Rob Breedlove...

Having killed Sarah, Spector ritually bathes her and paints her nails, snips off a lock of her hair and takes a necklace. Later he masturbates over film he has taken of her corpse. Stella ...

A bereavement counsellor maintains a seemingly normal family and marital life and while pretending to work on a support hotline at night, instead goes out and commits meticulously well planned murders on adult women.