The three Blue sisters are exceptional --- and exceptionally different. Avery, the eldest and a recovering heroin addict turned strait-laced lawyer, lives with her wife in London; Bonnie, a former boxer, works as a bouncer in Los Angeles following a devastating defeat; and Lucky, the youngest, models in Paris while trying to outrun her hard-partying ways. They also had a fourth sister, Nicky, whose unexpected death left the family reeling. A year later, as they each navigate grief, addiction and ambition, they find they must return to New York to stop the sale of the apartment in which they were raised. As the sisters reckon with the disappointments of their childhood and the loss of the only person who held them together, they realize that the greatest secrets they’ve been keeping might not have been from one another but from themselves.