Chrissy and Jo share a flat together in
Earl's Court, west London, as well as working for the same company. The women find a stranger, student chef Robin Tripp, asleep in their bath the morning after the farewell party for their departed flatmate Eleanor. When he meets the two girls, Robin has been in London two days, having moved from
Southampton to attend university. The girls are unimpressed with Gabrielle (
Helen Fraser) as a potential replacement for Eleanor, but they are impressed by Robin's culinary skills, as they cannot cook at all. Learning that Robin has been staying at the
YMCA, they convince him to move in, on the understanding that it will be a platonic relationship. Chrissy tells landlord George Roper that Robin is
gay, to eliminate George's objections to the mixed-sex living arrangement. George, in truth a subletting landlord placed by the council, is a miserly, spiteful and unkempt man under the thumb of his domineering and sexually frustrated wife
Mildred. In the second episode, Robin's true sexuality becomes known to Mildred. She takes out her frustrations with George's lack of class and sexual inadequacy by making suggestive remarks to Robin and frequently siding with the tenants against George. Mildred openly flirts with Robin, and Robin frequently flirts with Chrissy and Jo. The girls, adhering to their pledge to maintain a platonic relationship with Robin, spurn his mild advances and adapt to his presence in the flat. Chrissy occasionally shows attraction to Robin, but the two never pursue any romantic interaction. Robin's friend Larry, a
lovable rogue, appears on a recurring basis throughout the series. In the third series, he moves into the loft apartment above the trio's apartment and is a frequent source of trouble. Another occasional cast member is George's friend, the dodgy builder Jerry (
Roy Kinnear). Jerry is the only supporting character to reappear in the spin-off
George and Mildred. Robin's brother Norman Tripp (
Norman Eshley) appears in the final three episodes of the sixth and final series, and starts a romance with Chrissy. The series ends with Norman and Chrissy marrying. Eshley had a previous guest role in the episode "In Praise of Older Men" (Series 2, Episode 3), and would subsequently appear as another character, the Ropers' neighbour, in
George and Mildred. ==Episodes==