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.

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.