For Peyton Reilly no strings means no heartache. She hasn't had a relationship since Hanna Choi, her high school girlfriend, broke her heart almost a decade ago. But everything's great. She has a job she loves, a loyal group of friends, and plenty of time for surfing. At least until Hanna unexpectedly accepts a job at the aquarium where Peyton works.

Their reunion is anything but joyous. Despite Hanna's cold shoulder, Peyton can't stop old and familiar feelings from pouring back. When Hanna slowly begins to open up, painful memories Peyton's worked hard to forget remind her that getting too close could lead to another broken heart.

Peyton quickly learns that sometimes all your heart needs is a second chance, but are the scars of the past too deep to heal?