Lara McClintock, co-owner of an antique shop in Toronto, travels to County Kerry, Ireland, to hear the will of an old friend. The rich man Emin Byrne left each of his quarreling heirs an envelope with instructions so that they, united, could find the treasure he had hidden. Discovering that the key to the mystery is an ancient Celtic poem, Lara begins her search, but someone tries to stop her by committing murders...