Paolino has secretly married Geronimo's daughter Carolina. Their situation is complicated by Carolina's aunt Fidalma, who loves Paolino, and by the arrival of the Englishman Count Robinson who, although betrothed to Geronimo's other daughter Elisetta, falls in love with Carolina. After much scheming and amorous intrigue, the truth about the marriage is revealed and all ends happily.

Geronimo is a man of standing with a business to run and two daughters, Elisetta and Carolina, to marry off. A little nostalgic for his native Italy, Geronimo runs a thriving cake boutique in 1950’s New York. Between an aristocratic customer and a humble delivery boy, will his daughters make the right choices in love? Il matrimonio segreto, a dramma giocoso in two acts, is Domenico Cimarosa’s best-known opera. The first performance took place on 7 February 1792 at the Hofburgtheater in Vienna in the presence of Emperor Leopold II, who liked it so much that, after giving dinner to the whole company, he asked for a complete second performance - perhaps the longest encore in history. As with the best opera buffa of the 18th-century, it contains a plot full of impossible situations (might just one of the daughters be married already?), elaborate disguises and, of course, a happy ending.