"What's a rushtide?" "A rushtide is a current that comes out of nowhere from the depths of a calm sea and tries to sweep you out to sea. They are very powerful, very sudden and we have no way to detecting them coming in. For the most part, they seem to come out of nowhere." One night, Bekah loses everything; love, family and dignity. Despite the warnings of her dead father still ringing in her ears, Bekah reconnects with her long estranged relatives and travels to the one place that could be the most dangerous of all, Greybourne - her reclusive Uncle's house on the desolate Yorkshire coastline. The more time Bekah spends at Greybourne and the more strange things that happen, Bekah begins to wonder. Did her search for her father's killer that brought her to Greybourne, or was it the same man setting a trap? Only one thing is clear - in the Easton family, everyone has something to hide.