Set in New York, Three Days of Rain centers on a brother Walker, his sister Nan, and their childhood friend Pip who meet to settle their parents' estate. The two fathers were long-time friends and partners in architecture; their legacy is the brilliantly daring creation, the 1960's Janeway House. But whose was the guiding hand? In this tense and brittle reunion, much more is at stake than who gets the house.

Brother and sister discover their father's bland, sparse diary, and use it to create a story for themselves that will explain away the present and make sense of their parent's passionless marriage. Over the "three days of rain" entered in the young architect's diary, the same three actors then play their own parents and reveal a romantic significance and creative dilemma that none of these children could ever have imagined.

The first act introduces the audience to Walker and Nan, brother and sister, and best friend Pip, with whom they grew up. The trio attend the reading of the sibling's father's will. Act two is set thirty years past. It explores the relationship between Ned and Theo, fledgling architects, and Theo's girlfriend Lina, and seeks to answer questions raised in the first act

Julia Roberts will make her Broadway debut in spring 2006 in a revival of Richard Greenberg's Three Days of Rain.