The Somerville sisters believe in love, but they’ve lost faith it will happen for them. Reggie hasn’t been home since the end of the world’s shortest engagement. When her parents decide to renew their vows, she buffs up her twinkle to help with the Christmas wedding. Unexpectedly, Toby, her first love, is back too, and the spark between them shines as brightly as ever. In the spirit of the season, will they let go of past hurts and greet the New Year together?

Kezia Cooper Hobson, recently widowed, arrives in New York from San Francisco. Determined to make a fresh start, she has just completed the sale of her Pacific Heights home, not to mention her husband's venture capital firm, and in doing so, is also freed from her responsibility as a board member of the company. Bringing with her only a few personal treasures, she is excited to move into the blank slate of a beautiful midtown penthouse, in the city that she has always loved. It is also where her two adult daughters now live.

Once upon a time, when her dad married Sage’s mom, Daisy was thrilled to get a bright and shiny new sister. But Sage was beautiful and popular, everything Daisy was not, and she made sure Daisy knew it. Sage didn't have Daisy's smarts—she had to go back a grade to enroll in the fancy rich-kid school. So she used her popularity as a weapon, putting Daisy down to elevate herself. After the divorce, the stepsisters' rivalry continued until the final, improbable straw: Daisy married Sage's first love, and Sage fled California.

As the owner of Twisted, Seattle’s best salons, Erica knows that the sharpest cuts come from the people we love. She’s terrified that she’s losing her teen daughter, Summer, to her “other” family. Summer disdains Erica’s career as shallow, and she's growing close to her stepmom, Allison. All it takes to blow up Allison’s happy life is one collect call. From prison. Her beloved husband, Peter, has been arrested, leaving Allison pregnant, scared and alone with a toddler, with no money for rent or, hey, food.

Finola, a popular LA morning-show host, is famously upbeat until she’s blindsided on live TV by the news that her husband is sleeping with a young pop sensation. While avoiding the tabloids and pretending she’s just fine, she’s crumbling inside. Zennie’s breakup is no big loss. Although the world insists she pair up, she’d rather be surfing. So agreeing to be the surrogate for her best friend is a no-brainer. Ali is used to being overlooked, but when her fiancé sends his disapproving brother to call off the wedding, it’s a new low.