Siberia

An American diamond merchant travels to Russia to sell rare blue diamonds of questionable origin. As the deal begins to collapse he falls into an obsessive relationship with a Russian cafe owner in a small Siberian town. As their passion builds, so does the treacherous world of the diamond trade from which he is unable to extricate himself. Both collide as the American man desperately looks for escape in a world with no exit.
Lucas, a diamond trader who travels to Saint Petersburg to arrange a sale, discovers that his Russian business partner has left his hotel and gone to a small Siberian village, so Lucas also heads there to try find him.