When an affluent matriarch gathers her dysfunctional family for a holiday at their Northern California lake house, her carefully constructed weekend begins to come apart at the seams, leading her to question her own role in the family.

Claire Smythson, wife of the renowned abstract artist Richard Smythson, is plunged into a late-life crisis when her husband is diagnosed with Alzheimer's disease and is in danger of not completing the paintings for his final show.