Kate experiences the force of nature that is Tully when they meet as teens, at their first journalism jobs in 1982 and over a PTA crush in 2003.

A traumatic assault. A hidden romance. A signed consent form. Secrets both shared and unspoken test Kate and Tully’s friendship over the years.

Tully's mom disappoints her again and again, and Kate's boozy night with her best friend and their coworkers causes awkwardness, accusations and hurt.

After one of Tully's birthdays ends in disaster, Kate becomes devoted to making her friend's big day special, even if her efforts don't always succeed.

For the first time in decades, Kate and Tully experience a year apart — but can they handle major life events without each other?