When amateur film-maker Lisa Lee vanishes from a Scottish seaside town, journalists Anna and Fin find themselves at the centre of an internet frenzy to find her. But Lisa may not be the hapless victim everyone thinks she is. The last film she made showed her breaking into an abandoned French chateau and stumbling across a priceless Roman silver casket. The day after Lisa vanishes, the casket is listed for auction in Paris, reserve price fifty million euros, with a catalogue entry that challenges the beliefs of a major world religion.