Examining serious crimes where social media has played a significant role, with interviews with victims and input from experts. Beginning with the murder of 15-year-old Holly Newton whose social media accounts were hacked by her ex-boyfriend who used them to track her movements, find her and stab her over 30 times.

How a stalker sought revenge on her former boss, using LinkedIn, Instagram and X to ruin her reputation online. When the campaign of harassment failed to yield results, she turned her attention to other targets, including a motivational speaker she had only met for 30 seconds and a woman who tried to help her.

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.