Nick, a photographer, and his young wife, Angie, have just become the proud parents of a little boy, but money is tight, so Nick's south London father, Sam, has a suggestion to alleviate the financial burden. However, Angie's mother Daphne arrives from Cheltenham with an alternative suggestion -and she's used to getting her own way.

Both Sam and Daphne move into the basement. This does not bode well for a life of domestic bliss - and an unexpected visitor highlights the problems.

Sam and Daphne have been sharing the flat for a few weeks, but it has not been an easy time for either of them. Against her better judgment, Daphne is forced to include Sam in her social life.