Kesterly-on-Sea is full of secrets; some are darker than others. Andee is an ex-detective whose marriage is breaking up. So when a young female student disappears without a trace, she throws herself into the search. Meanwhile the town's beloved Rowzee Cayne has just discovered that she is terminally ill and doesn't want to burden her family and friends with the news. Andee and Rowzee don't know it yet, but their journeys are going to help them uncover a secret – a secret that is going to affect them more than they could ever imagine.