An idyllic resort on an island off the coast of England promises ultimate relaxation. But the island itself, also known as The Reaper's Rock, has a dark past. It was once the haunt of a serial killer.

A new woman is found dead under the yoga kiosk. It seems that her death was caused by an unfortunate fall. However, detective Ellen Warner discovers that the victim was not a resident of the resort; she shouldn't have been on the island at all.

Most people come here to relax, but someone has come to seek revenge..

As time goes by, Elin uncovers more and more secrets. And when someone else from the group drowns in a scuba diving accident, Elin suspects that these deaths are not just accidents. But why would someone target the residents of this luxurious resort? Detective Warner must find the murderer before the island's history repeats itself.