Writer and activist Peter McGraith married his long-term partner David in March 2014, the first gay wedding registered in the UK.
Two years on he meets gay and lesbian couples and speaks with them about their relationships - why did they decide to get married? Or stay in a civil partnership? And why, for some, will marriage never be an option?
Peter explores what kind of effect marriage is having on gay and lesbian couples... and how it might be affecting us as a society, for better or worse.
And what does the marriage, for so long a cherished goal of equality campaigners, look like from the inside? Does it look and feel like heterosexual unions or is it, as some academics believe, re-building the institution from the ground up?
Radio 4 hears personal accounts of queer marriage in post equality Britain, meeting couples, co-parents, friends and lovers along the way.
Producer: Caitlin Smith