Middle-aged widow Beatrice Hunsdorfer and her daughters Ruth and Matilda are struggling to survive in a society they barely understand. Beatrice dreams of opening an elegant tea room but does not have the wherewithal to achieve her lofty goal. Epileptic Ruth is a rebellious adolescent, while shy but highly intelligent and idealistic Matilda seeks solace in her pets and school projects, including one designed to show how small amounts of radium affect marigolds.
A tale of four generations of men, all of whom have had their offspring at a young age: a great-grandfather, a grandfather, a father in his twenties and a son who is about 7 years old. When the oldest member passes away, the trio heads out on the road together in the Southwest to search out an old family secret that connects to their past.