Secret holders share why and how they have used the internet to disclose their most intimate or well kept secrets - how does a compulsion to confess in a public setting effect those who the secret is about? And can this audition of secrets online naturally lead to revealing them offline?

Aleks talks to her high school friends to unravel the secrecy about SARGON, an open secret society at her high schoo,l which she was never invited to join. She discovers the power of secrets for those on the inside and outside of SARGON. Could such a society exist today in the presence of social media?

We also hear from Frank Warren the secret keeper of the online website and app PostSecret. Yorick Pheonix who used PostSecret to air a secret kept for 30 years tells us why he was happy to use such a public setting to explain that he kept his daughter a secret from his family. Aleks addresses the ownership of secrets and how the internet can impact on this. We hear from Yorick's daughter, Rachael about how she feels that her father's secret, which is also her own, is online for all to hear.

And former MI6 officer Harry Fergusson talks about context collapse and how he managed to keep his work and family life separate.

Producer: Kate Bissell

Digi Human graffiti by NOIR aka Glynn Judd.