When Cecilia Lapthorne's 75th birthday celebrations take an unexpected turn, she seeks solace away from the festivities and escapes to Dune Cottage - without telling her family where she's going.

When Cecilia Lapthorne's 75th birthday celebrations take an unexpected turn, she seeks solace away from the festivities and escapes to Dune Cottage - without telling her family where she's going.

A new friendship

Lily Thomas, a struggling artist, has secretly been staying in the unoccupied cottage. When Cecilia discovers Lily during a late-night visit, an unexpected bond forms between the two women.

A chance to start over

Then Cecilia's grandson, Todd - and Lily's unrequited crush - shows up, sending a shockwave through their unlikely friendship. Will it inspire Lily to find the courage to live the life she wants? Can Cecilia finally let go of the past to find a new future? Because as surely as the tide erases past footprints, this summer is offering both Cecilia and Lily the chance to swap old dreams for new …