La Finta Giardiniera tells the story of Count Belfiore and Violante, who were lovers until Belfiore stabbed Violante in a quarrel. Mistakenly believing Violante to be dead, Belfiore has become engaged to the very jealous Arminda. Violante, meanwhile, has disguised herself as the gardener Sandrina in order to confront Belfiore. As more complications arise, lunacy ensues. In a fit of jealousy Arminda kidnaps Violante. When Violante is found both she and Belfiore nearly go mad until eventually Violante decides to forgive Belfiore.