Beauty fades. Marriages change. But best friends are forever.

Diana has the perfectly planned life: boy-girl twins attending Princeton and Brown; a wonderful marriage; and her own successful crisis PR agency. She never saw this coming.

Kristin’s affair has left her adrift. With her daughter off at college, she’s not adjusting to her empty-nest life well. She wants to feel something again.

Travel writer and free-spirit Steph loves nothing more than to go-go-go. She doesn’t have room in her life for a partner, kids, or anything long-term. She’s tired of explaining herself.

Their lives couldn’t be more different, but after a run-in with a group of younger women, they end up in the same place: needing each other to find their footing in a world that increasingly pushes them aside.