You are invited to join Marin and her exuberant sister Gen on vacation in Cornwall, where they attend a seaside wedding. During their stay, Marin is acutely aware of the mysterious people who staff the old resort where the wedding is held. She is particularly drawn to Geoffrey, who challenges her to feel her emotions and overcome fear. In the process, Marin discovers an ancient world that coexists with the modern one in this remote and scenic land.