A New York detective investigates the death of his daughter and son-in-law in London; he recruits the help of a Scandinavian journalist when other couples throughout Europe suffer a similar fate.
Seorang detektif New York menyelidiki kematian putrin dan manantunya di London; ia merekrut bantuan seorang jurnalis Skandinavia ketika pasangan-pasangan lain di seluruh Eropa mengalami nasib serupa.