First broadcast 9th January 1974.
The three flatmates plan a party, taking advantage of the fact that the Ropers will be out visiting Mildred's sister and her husband.
Richard O'Sullivan - Robin
Paula Wilcox - Chrissy
Sally Thomsett - Jo
Yootha Joyce - Mildred Roper
Brian Murphy - George Roper
Ian Lavender - Mark
Michael Segal - Jim
Jenny Hanley - Liz
Jeffrey Gardiner - Maurice
Colin McCormack - Henry
