Anna has everything worked out - a successful company, the comforts she needs, and no ties. But it all changes when her return flight to the UK from a holiday in Lithuania is cancelled, and she passes the time on a deserted beach - where she discovers the white curve of a human leg protruding from the sand. Anna is compelled to uncover the story behind the tragedy, despite concern from her partner, Will. Everything points towards sex trafficking; but as she searches, her own deepest secrets start to surface. When Will disappears without a trace, Anna is pulled further into the murky world of organised crime. Time is running out for them all, and there's a killer out there who will stop at nothing...