Summer's Lease (1989)

From the DVD box: The minute she sets eyes on it, Molly Pargeter knows that the Tuscan Villa she has found to lease is perfect for her family's summer holiday. She is powerfully drawn to its rustic beauty and to the enigma of its absentee landlord. Never mind that her husband and teenage daughter are vocally unenthusiastic and that her outrageously extroverted father tricks them into taking him along. As the family goes sightseeing and gathers for candlelit dinners on the terrace, Molly becomes increasingly obsessed with unravelling the secrets of the villa's owner and of the British expatriates and locals they encounter. Her father lends a hand with the sleuthing while remaining on the prowl, zeroing in on a certain rich widow with whom he shares a romantic past.