Veterinarian Cami Anderson has hit a rough patch. Stymied by her recent divorce, she wonders if there are secret ingredients to a happy, long-lasting marriage or if the entire institution is outdated and obsolete. Couples all around her are approaching important milestones. Her parents are preparing to celebrate their fiftieth anniversary. Her brother and his partner find their marriage dreams legally blocked. Her former sister-in-law—still her best friend—is newly engaged. The youthfully exuberant romance of her teenage daughter is developing complications. And three separate men—including her ex-husband—are becoming entangled in Cami's messy post-marital love life. But as she struggles to come to terms with her own doubts amid this chaotic circus of relationships, Cami finds strange comfort in an unexpected confidant: an angry, unpredictable horse in her care. With the help of her equine soul mate, she begins to make sense of marriage's great mysteries—and its disconnects.