Marnie Fairchild is a planner, but when life throws one too many curve balls, the drive to bounce back evaporates. Empty after caring for her beloved Grams, who had Alzheimer's, and betrayed by her fianc , Marnie spirals into depression. Enter her warrior friends, led by Hilary, a life coach. Voil , "Marnie's Plan" is born. She agrees to all the seven points on the plan, except the last one: to fall in love. Rebuilding her life in Rockport, a quaint town on the North Shore, takes time and money. Needing a job, she responds to an ad for a housekeeper's position, but fate intervenes, and instead she becomes a live-in nanny for rambunctious three-year-old Emily. Her brusque father, Nathan Hunt, a mystery writer, is desperate for help with his daughter. With one look at Emily, Marnie's heart melts. Is there a future for Nate and Emily in Marnie's Plan?