Riley Maxwell spends her days working from her New York City apartment, designing websites and copywriting for clients around the world. Most of her exposure to people outside of her home base is her visits to the local Chinese takeout place down the street. Satisfied with her life of solitude, Riley's summer gets turned upside-down when a wealthy client passes away, leaving her a beach house in Port Henry, New York, one of the wealthiest shore towns on the East Coast.

When the Great Dane, Scrappy, who—surprise!—she also inherited, gets sick, she takes him to the nearest veterinarian, where she meets Donovan Hunter. A ridiculously good-looking playboy, Donovan immediately gets under Riley's skin, and she can't wait to be rid of the house, the dog, and Port Henry. Dr. Hunter, on the other hand, can't get enough of Riley's sass and how different she is from the usual summer crowd.

As the summer passes and Dr. Hunter runs out of made-up reasons to get Riley and Scrappy back into the office, he cooks up a new plan to catch her attention, setting a plan in motion to get the girl, and the dog.