The priest in a snow-blanketed Swedish town opens her church and discovers a dead woman on the altar. The corpse is dressed in a wedding gown and clutches a fresh bunch of cornflowers. Fatima Engquist has no signs of violence on her body and the local cops soon call the Stockholm murder squad. Kriminalinspektör Stella Cole lands the case.

With pressure from her boss and the Swedish media to produce an early result before any more dead brides turn up, Stella Cole needs to be at her sharpest to catch a serial killer who doesn’t even believe he’s evil.

Stella Cole, Richard and baby Lola. A perfect family. Stella’s a high-flying cop and Richard’s legal work aims to expose corruption in high places. But powerful people want Richard dead, and they don’t care who gets in the way. In a calculated act of violence, the family is torn apart and Stella is plunged into a nightmare of grief, barely surviving on alcohol and pills. A year later, she starts to pick apart the original investigation. Her shocking discovery forces her into a dangerous world of lies and cover-ups where the only rule is kill or be killed.

Detective Inspector Stella Cole only has one case. To find, and kill, the remaining members of a legal conspiracy who turned her world into ashes. But their leader, Adam Collier is her boss. And he’s pulling in friends from the underworld to take the fight to Stella. Chief among them, an Albanian drug lord nicknamed, 'The Shark'. Regrouping in Spain, Stella makes contact with an old adversary. A retired gangster named Ronnie 'The Razor' Wilks. He proposes a deal that tests Stella’s resolve to the limit.

Detective Inspector Stella Cole has almost completed her bloody quest to avenge the hit and run killings of her husband and daughter. Only one member of the legal conspiracy who murdered them remains. But he happens to be her boss: Detective Chief Superintendent Adam Collier. And he’s not going to go down without a fight. Collier's first move is to have Stella sectioned. While she’s incarcerated in a psychiatric hospital, he hires a Maltese woman to kill her.

The glamorous CEO of an anti-abortion charity has been found horribly mutilated and strangled to death in her own kitchen. Before long, the killer strikes again, and again. And now the pattern emerges. The victims are all high-profile Christians. Back from the brink of killing herself, and newly promoted to DCI, Stella Cole takes a call from her sergeant that puts her plans on hold. Stella and her team at the Special Investigations Unit are racing to stop the serial killer dubbed “Lucifer” by the media, before he can take another life.

A former Swedish ambassador lies dead in his swanky Mayfair flat. With his tongue torn out and placed on a Bible. Competing theories swirl. A religious maniac? A psychopath? The truth is far darker than either. DCI Stella Cole’s search for the killer takes her to Sweden. There, she discovers a horrific chapter in the country’s history that throws the case into turmoil. Meanwhile, Stella's personal life is about to take a significant turn as her boyfriend, Jamie, suggests a change in their relationship. But as Stella tries to process what it means, she makes a fateful decision.