A tourist is found dead in Istanbul, the victim of what appears to be a ritual killing. An elderly man is murdered in the same manner, in his house by Lake Como. The third murder is the most perplexing of all: the priest of a small, isolated Greek island lies dead in the sanctuary, his body ritualistically mutilated.

Fotini Meliou is visiting her family on the island of Athora for a few days, before starting a new life in the US. She is looking forward to a brief respite and, perhaps, becoming better acquainted with the seductive Gabriel, whom she has just met. It is not the summer vacation she expects it to be. A massive weather bomb is gathering over the Aegean, threatening to unleash the most violent weather the area has ever seen. When the storm breaks out, the struggle begins. A race against the elements and a race against time: the killer is still on the island, claiming yet another victim. Locals, a boatload of newly arrived refugees, foreign residents, and stranded tourists are now trapped on an island that has lost contact with the outside world.

As the storm wreaks havoc on the island, how will they manage to survive?