Leonie has left behind everything and everyone she loves for a fresh start in California. Desperate to outrun the mess she's come from, she hopes the change of scenery can mend her broken heart and bury her secrets forever. But when she discovers a bundle of unread love letters hidden in the back of a wardrobe in her new apartment, she is intrigued by the mystery behind them...and can't help but notice the similarities between them and her own story. With the help of her new friend Alex, a news reporter toting around baggage of her own, Leonie embarks on a quest down the West Coast to find the ill-fated lovers from the letters and reunite them, whatever it takes. Even if it means confronting the hurt she's buried deep within herself.

Kate O'Hara’s daughter, Rosie, is one of a small percentage of children with a disorder that prevents them from being immunized. All Kate can do is hope that herd immunity keeps disease at bay and her little girl safe. For Madeleine Cooper, vaccinations were a leap of faith she wasn't prepared to take. Following much soul-searching, she and her husband declined controversial measles shots for their daughter, Clara. But when both girls wind up in the same elementary school class, telltale red spots appear on Clara's chest, and on Rosie's a few days after. And while one child recovers and the other's health becomes more critical, the two mothers find themselves across a very deep divide.