Mr and Mrs Stafford decide to run an "open" marriage, which, of course, relies on complete honesty.
| Actor | Role |
|---|---|
 Susan LittlerAnn Stafford | Ann Stafford |
 Brian ProtheroePeter Stafford | Peter Stafford |
 Graham McGrathHarry Stafford | Harry Stafford |
| CCherith MellorElaine Golding | Elaine Golding |
 Ewan StewartPaul Dalby | Paul Dalby |
| BBelinda CarrollHazel Harrison | Hazel Harrison |
| PPhilip YorkJohn Harrison | John Harrison |
 Alan BowyerSimon Bowyer | Simon Bowyer |
| DDennis EdwardsPrest | Prest |
 Diane MercerNeighbour | Neighbour |
| AAnn WindsorNeighbour | Neighbour |
| JJumoke DebayoHospital Sister | Hospital Sister |