Gwyn Huntington knows how to throw a party. And Hunt Hall, her postcard-perfect Victorian home in Montauk at the easternmost tip of Long Island, is no stranger to celebrations. But on the morning of her thirty-fifth wedding anniversary, she’s putting finishing touches on the last party she’ll host there. The last time she’ll see Hunt Hall abuzz with caterers and bartenders. The last time she’ll preside over a gathering of beautiful friends chatting in candlelight. The last time she’ll fully play the role of Mrs. Thomas Huntington. Divorce parties have become commonplace, if not fashionable, in Montauk. But Gwyn is determined that hers will be different. 

Just over one hundred miles away on the same morning, Maggie Mackenzie sits on the floor of her Brooklyn apartment attempting to organize her new life. A former travel writer, she’s fallen in love with a wonderful man, gotten engaged, and is planning to start a business with him. Today is also the day she’ll meet her fiancé’s parents for the first time. She’s feeling particularly uneasy about the occasion surrounding her first meeting with Nate’s family. 

The Divorce Party takes us into the lives of these two women at opposite ends of marriage. For all the differences between them --- distance, privilege, age --- Gwyn and Maggie have one thing in common: Each has found herself at a crossroads. Gwyn has been preparing for this day, the last predictable day before an uncertain future. Even though she’s had time to come to terms with her divorce, she still can’t quite believe her marriage is over. How can she move on when her marriage has defined who she is for the last thirty-five years? And for Maggie, the emotionally charged trip to Montauk shakes the foundation of her relationship with Nate and dredges up feelings she has spent her life trying to avoid. 

In the end, Gwyn and Maggie face the same questions: How hard should you work to stay with the person you love? And when is it time to let go?