"Please come. I need your help..." Fiona and Madison have been best friends since childhood. So when Madison sends her an unexpected call for help, Fiona doesn't hesitate to come to her aid. Madison, an archaeologist, works at a dig on a tiny Orkney island, where the icy North Sea wind warns of a coming storm. But when Fiona gets off the ferry, Madison isn't there to meet her. She's missing. Madison's colleagues claim to know nothing about her disappearance. But in such a tight-knit group, how can Fiona know that one of them isn't responsible? As Fiona begins her search, she soon unravels a web of lies. Madison didn't live the life she claimed to, and now Fiona's own life is in danger...