May Ryder, a curious seven-year-old, notices her reclusive neighbor, a former child star named Gail McKenzie. Despite warnings, May persists in trying to befriend her. One day, while spying through the window, May is caught by Gail, who, instead of scolding, apologizes for her grumpiness.

May discovers Gail’s hidden past as the child star “Giggles McKenzie.” Gail, now lonely and forgotten, opens up to May about her tragic losses. May insists on being Gail’s friend and suggests showcasing Gail’s memorabilia to the world. With May’s enthusiasm and her mother’s help, they turn Gail’s home into a museum.

Word spreads, and soon, kids flock to meet the once-famous Giggles McKenzie. Local TV networks cover the story, interviewing Gail. When asked about her most precious possession, Gail points to May, acknowledging the importance of love and friendship.

In the end, May not only changes Gail’s lonely life but also helps her rediscover the value of connections.