The first episode centres on an upper-crust but down trodden husband, Peter and his uncaring wife, Flick, who suffers from a rather convenient sexual disorder.
This edition features a happily married, middle-aged couple who run their own guest house in the Black Country - as well as organizing swinging parties for S&M enthusiasts.
This edition focuses on Michelle and Stephen, who live in a working-class community in the Welsh valleys.
Beverlee and Tony are religious zealots. They love their four dogs, but hate their neighbours. Tony is the manager of a bathroom retail outlet and Beverlee has a mobile hairdressing business. In their spare time they evangelise, and deliver curly sausage casseroles to the local vicar.
Neurotic Barne and wannabe rock chic Fonte invite the cameras into their home to prove that they have a thoroughly modern relationship. Fonte just wants her 15 minutes of fame, but Barne finds that being filmed is a useful form of therapy.
A south-coast couple who run a shop selling everything from sandwiches to bras are approaching their eighth wedding anniversary. Husband Ray has always wanted to go on a cruise, so wife Les arranges a trip on a cross-channel ferry. But the fate of the couple's twins remains unexplained.