Buona Sera, Mrs. Campbell

American GIs are quartered in the Italian town of San Forino during the war, and Carla quietly houses one soldier at a time. Over a ten-day period she sleeps with Cpl. Phil Newman, Lt. Justin Young, and Sgt. Walter Braddock, each unaware of the others. The resulting situation leaves Carla pregnant with Gia, setting up a hidden legacy that will haunt the town for years.

Carla discovers she is pregnant by Cpl. Phil Newman after the first encounter, and she must navigate the stigma of an unwed pregnancy in a wartime village. She hides the truth from the town while managing how the baby will be raised. The pregnancy becomes the seed of a deceptive life plan that stretches over decades.

Carla becomes pregnant by Lt. Justin Young as the war continues, further complicating her already fragile standing. She continues to guard the secret, maintaining appearances in the village while the war drags on. Gia's existence becomes a hidden thread connecting the three men to the same child.

Sgt. Walter Braddock is the third man, completing Gia's paternity mystery. Carla remains discreet about the pregnancy and keeps the growing family puzzle to herself. The three relationships become a silent web that will affect the town years later.

To secure Gia's future and avoid scandal, Carla arranges monthly payments for the child from all three men, who still believe they are the only father. She hides the overlapping paternity, sheltering Gia from gossip and the reach of village judgment. This financial web plants the seeds for years of secrecy that will shape her daughter's life.

Over the next twenty years, Carla deftly invests the funds from the payments and buys a wine vineyard, turning it into a thriving business. Her handsome manager Vittorio helps run the operation while Gia is sent to a Swiss boarding school for education. The family becomes firmly rooted in the Italian countryside, far from the war's immediate shadows. This period cements Carla's independence and shrewdness.

To protect Gia and her social standing, Carla raises her daughter to believe her mother is the widow of Captain Eddie Campbell, a nonexistent army captain she conjures from a soup can. This deception gives Carla social prominence in a community that would otherwise shun an unwed mother. Gia remains largely unaware of the truth as she grows up in the vineyard's orbit.

Twenty years after the war, the three ex-airmen return to the village for a unit-wide reunion of the 293rd Squadron of the 15th Air Force, accompanied by their wives and, in the Newman family, their obnoxious children. The town buzzes with the prospect of meeting Gia and revisiting old memories. Carla navigates the social dynamics as she keeps her daughter protected.

Carla tries to keep the three fathers from discovering Gia’s paternity, triggering a run of social maneuvering. The three wives meet Carla and Gia at the town beauty parlor, where Gia's story moves them to push for a memorial chapel honoring Captain Campbell. The town senses the strain as plans for the chapel surface amid the looming truth.

The housekeeper inadvertently informs the men that something has been learned or discovered, setting off a cascade of hints and near-discoveries. The initial spark of truth threatens Carla's carefully constructed lie. The atmosphere becomes tense as Gia senses the shifting loyalties.

Mrs. Campbell admits she does not know which of the three is Gia's father and challenges the men to consider what kind of father they would have been. She forces a conversation that questions their missed opportunities to participate in Gia's life. The moment tests the relationships Carla kept secret for decades.

Vittorio helps Gia understand Carla's motivations, showing patience and loyalty as they face the unraveling family mystery. He reassesses his own role, choosing to remain a partner to Carla rather than stepping aside. Gia learns to interpret her mother's love through the lens of sacrifice and protection.

At the town's dedication ceremony, Carla asserts that Eddie Campbell would have been too humble to accept the honor. She asks the Contessa to accept the chapel dedication on behalf of the people of San Forino. The moment crystallizes the new, if complicated, community memory and reconciles some of the town's tensions.

The three fathers cease their monthly payments after the chapel dedication and the truth revelation. The Braddocks agree to have Gia stay with them while she attends college in the US, ensuring Gia has a stable family. Vittorio commits to remaining Carla's sole romantic partner and business partner, solidifying their long-term arrangement.