Lexie Noble's stable family life in Edinburgh is plunged into jeopardy when her accountant husband Jared is attacked in the street.

Feeling increasingly isolated and deceived, Lexie is left with no choice but to agree to help crime boss Cal Morris with a secret business transaction.

When Lexie is confronted by DCI Adam Guthrie over her relationship with Cal Morris, she is faced with a hard decision that leads her to live a double life.

Having been left to fend for herself by the police, Lexie focuses all her resources on the task at hand and edges closer to uncovering Cal's missing money.

A shocking revelation in Vilnius leads Lexie to confront the brutal reality of Cal's world and the sickening realisation of who she's dealing with.

A visit to the Isle of Eris turns Lexie's world upside down as she discovers crucial information that leaves her with an impossible decision.