And Lucky, the rebellious youngest, is a model in Paris whose hard-partying ways are finally catching up with her. Then there was Nicky, the beloved fourth sister, whose unexpected death left Avery, Bonnie and Lucky reeling. When, a year later, the three of them must reunite in New York to stop the sale of their childhood home, they find that it’s only by returning to each other that they can navigate their grief, addiction and heartbreak and learn to fall in love with life again.