2. Episode 2

When businesswoman Justine Wright lets an employee go, it sparks a decade-long stalking campaign against Justine and others

3. Episode 3

Teenager Joe Dix was groomed on social media by a county lines gang. Despite his parents' attempts to get him out of drug-dealing, he kept getting pulled back in, with tragic consequences.

4. Episode 4

When Leah Ware stopped posting on Facebook, her family assumed she was still living on a farm with the boyfriend she'd met online. But then another woman vanished after visiting the same remote farm.

5. Episode 5

Carson Sistrunk disappeared after going to see a woman who he met on Snapchat. The police investigation uncovered a disturbing pattern of deception and crime.

6. Episode 6

Shortly after 15-year-old Elianne Andam's friend broke up with 17-year-old Hassan Sentamu, a meeting between the ex-partners ended in humiliation for Hassan, prompting him to tell his friends online that 'he can't let it slide'. The next time he saw the girls, he was carrying a knife

7. Episode 7

Lyne Barlow's Facebook page advertises incredible holiday deals that are too good to be true - until Durham police unearth one of the largest fraud cases they've ever seen

8. Episode 8

'Chloe' has been messaging boys in Essex on Snapchat and Instagram and exchanging intimate pictures. But 'Chloe' is an alter ego for a prolific paedophile bent on abuse.

9. Episode 9

When James comes to the aid of a homeless man while celebrating a family birthday, he's murdered by an irate teenager with a knife. And it's on Snapchat. And Essex Police are onto it.

10. Episode 10

Ali Abulaban becomes TikTok famous when his character Jinnkid gathers hundreds of thousands of followers. Meanwhile, in the real world, his behaviour spirals into domestic abuse and more.