1. Episode 1

8.2

. 26 March 2017. 58 min

DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.

2. Episode 2

8.1

. 2 April 2017. 60 min

AC-12 crank up their investigation into Operation Trapdoor. Kate makes progress in her undercover role.

3. Episode 3

8.4

. 9 April 2017. 60 min

As AC-12 wrestle with the new forensic evidence casting doubt over Tim Ifield, Kate is approached by another woman claiming to have been assaulted by Michael Farmer.

4. Episode 4

8.4

. 16 April 2017. 59 min

Roz's husband Nick is brought in for questioning by AC-12. But while Nick denies any involvement in Steve's attack, his suspicions about Roz mount.

5. Episode 5

8.2

. 23 April 2017. 59 min

DCI Roz Huntley struggles to allay her husband's suspicions. AC-12 find a new angle to pursue their case against her.

6. Episode 6

8.8

. 30 April 2017. 58 min

While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.