Four couples, three bedrooms, two celebrations, one blazing row and an illicit kiss (or two). Alan Ayckbourn's ingenious comedy shines a brilliant spotlight onto the trials and tribulations of suburban marriage.

Trevor and Susannah have a problem relationship which requires urgent attention. What better solution than to talk it over with family and friends? Preferably in their respective bedrooms and ideally in the middle of the night. Inevitably,one problem relationship tends to spark off another.

When you have friends like Trevor and Susannah, nobody gets much sleep.