Fifteen-year-old Ellen Jane Gardner thought she was in for a perfect summer once she landed the job of mother's helper on Cape Cod. She knew the job description didn't specify sunny days at the beach, clam digging with two adorable children, and strolling in the moonlight with a handsome boy, but she fantasized that's what her summer would be like. Even before she's met the Winner family, she thinks her fantasy might come true when she meets gorgeous Toddy Crowley, who lives next door to her new employers.
Then Ellen meets Marcie, a ten-year-old spoiled brat who's disposed of eighteen mother's helpers already, and Derek, a five-year-old who doesn't yet talk. Things seem pretty grim when Lisa, the phantom sixteen-year-old sister whom no one bothered to mention in the job description, makes Ellen feel uncomfortable. Ellen knows her job isn't going to be easy but she's determined. It takes all of her imagination to match wits with Marcie and Derek and to figure out exactly what Todd Crowley wants. With more surprises in store, will Ellen be able to finish her summer job with a happy ending?