Destination Unknown

Hilary Craven has lost the will to live, Mrs Betterton is already dead. Then Hilary is asked to impersonate the dead woman and to trace her husband - a missing nuclear scientist - and her will to live returns. A faked air disaster, a string of radio-active pearls, a leper colony floundering in the dry heat of the Morroccan desert. Hilary is lead towards a terrifying discovery and her new found enthusiasm for life turns into ice-cold fear...