Lucy wakes every night at exactly 3:33am. Nothing in her life has made sense for a long time. But the answers are out there, somewhere, at the end of a trail of brutal murders.

Lucy investigates a strange connection between her son’s fantasies and her new neighbours, unaware that she is being targeted by a dangerous criminal.

Lucy exploits her connection with Dhillon to track down an elusive teenager, worried he is being targeted by their prime suspect.

Lucy and Isaac start a new chapter – but their short-lived peace is thwarted by the revival of a police investigation that threatens to expose her double-life.

Lucy finds herself at the heart of a police investigation. Her waking nightmares reveal impossible information, leading her and DI Dhillon to make a grim discovery.

Lucy and Gideon identify a suspect in their efforts to prevent an atrocity. Lucy risks everything to confirm her suspicion, culminating in a decision she will never be able to come back from.

Following a tragic twist of fate, Dhillon teams up with Lucy to track down the mysterious stranger at the centre of the chaos.

Lucy desperately tries to cover her tracks as secrets and lies are forced into the open and a terrible deadline looms.

DI Chambers and her partner DS Dhillon investigate an elusive serial killer named Gideon Shepherd.

Lucy confronts the reality of her situation and is forced to make an impossible choice. Boyd is tested to her limits in her pursuit of the truth, and Dhillon comes to a realisation, with catastrophic results.

With the suspect in custody, the answers to life’s mysteries are within Lucy’s reach. But will she believe them?