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.