The bumbling committee of St Cedric`s Church invite the leading moral campaigner & philanthropist, Lady Porchester, to their garden party, in the hope of a donation. However, the vicar`s attempt to impress her with an announcement of his intended marriage badly backfires. Love-rivals` handbags fly & the committee are at each others` throats, prompting Lady P to threaten a walk out. The day is saved, though, when a startling revelation about her love life elicits a very large donation. The play ends with her in a highly-charged sexual state, thanks to her being mistakenly given a powerful aphrodisiac, as she chases a trouserless vicar out of the garden!