Prue is intelligent, artistic, independent ‒ and bored. Pressured by her mother to make a conventional and dull marriage, she is delighted to escape London and seek retreat with her eccentric and bohemian aunt in Cornwall.

A chance encounter with an attractice young artist on the seashore leads to day after idyllic summer's day of exploring the Cornish countryside and coast. But there is something troubling Daniel, and Prue, now deeply entangled, feels compelled to discover what it is...