The online world can be a breeding ground for hate. But why do some people behave the way they do on social media?

In each episode, the BBC's Disinformation and social media correspondent Marianna Spring - one of the most trolled BBC journalists - dives into her inbox and investigates a different extraordinary case of online hate to find out.

She meets the people at the heart of these conflicts, and in some cases brings them together, to see if understanding - even forgiveness - is ever possible.

You can listen to the first two episodes now on BBC Sounds and by listening to this trail you’ll get a sneak preview as to what’s coming up in the rest of the series.

You can watch the episodes on BBC iPlayer too.

If you have been affected by online abuse, please visit bbc.co.uk/actionline

Host: Marianna Spring
Series Producer: Emma Close
Producer: Ben Carter

Editor: Sam Bonham

Commissioning editor: Rhian Roberts
Sound Engineer: Tom Brignell
Production co-ordinator: Rosie Strawbridge