In June 1916, eccentric glass genius Louis C. Tiffany dynamites the breakwater at Laurelton Hall --- his fantastical Oyster Bay mansion --- so as to foil the town from reclaiming the beach for public use. The explosion shakes both the apple crate where Prudence, the daughter of Tiffany’s prized gardener, is sleeping and the rocks where Randall, her seven-year-old brother, is playing. Nearly a century later, Prudence receives an unexpected visit from Grace, a hospice nurse and Randall’s granddaughter. The mementos Grace carries from her grandfather’s house stir Prudence’s long-repressed memories and bring her to a new understanding of the choices she made in work and love, and what she faces now in her final days.

From a breakout talent, a gimlet-eyed look at the entanglements that arise when Myra, a Manhattan analyst, hires a Peruvian woman from a mestizo-Jewish community to be the nanny for her grandchild.