Cary Scott is an affluent widow in the town of Stoningham, in suburban New England, whose social life revolves around the weekend visits of her college-age son and daughter, her best friend's country-club activities, and a few men vying for her affection. Feeling stuck in a rut, she becomes interested in Ron Kirby, her arborist. He is an intelligent, down-to-earth, and respectful, yet passionate, younger man, and she discovers he is content with his simple life outside the materialistic society in which they live. Ron introduces Cary to his friends, who seem to have no need for wealth or status, and their exuberance provides a welcome contrast to her staid existence.
Ron and Cary fall in love, and Ron proposes. Cary accepts, but she has concerns about the viability of their relationship, due to their different ages, classes, and lifestyles. These concerns are magnified when she tells her children and friends about the engagement and is met with a solid wall of disapproval, and, eventually, she breaks up with Ron. Particularly influential in her change of mind are her children's protestations against Cary's plan to sell the family home and move to Ron's tree nursery, as they will not want to visit her there.
After spending most of the Christmas season alone, Cary misses her life with Ron, but she thinks she has missed her opportunity for happiness because she mistakenly believes Ron is seeing another woman. On Christmas, her daughter announces she will be getting married soon and her son says that, since he is likely going to study abroad and then work overseas, they should start thinking about selling their house, which is too big for just Cary. She is overwhelmed by how pointless her sacrifice was, and her spirits are not lifted when her children give her a television set to fill her empty life.
Cary goes to see a doctor about recurrent headaches she has started having, and he suggests they are being caused by her body punishing her for ending her relationship with Ron. Leaving the appointment, she runs into one of Ron's friends, and in the course of their conversation she learns that Ron is still single. She goes to his property, but then changes her mind and leaves. Ron sees her from a precipice and excitedly, though unsuccessfully, tries to get her attention. The ground collapses out from under him, and he falls off the cliff.
That night, Ron's friend tells Cary about the accident, and she hurries over to his house. She decides she no longer wants to allow other people to dictate how she lives her life and settles in to nurse Ron back to health. When Ron regains consciousness, Cary tells him that she has come home.
