Lieutenant Guthrie and Sergeant Carter are driving along in cold snowy weather and recall this time last year when a young girl Charlotte Evans was found dead in a snow drift with a slashed throat. Then a call comes over the radio about a missing girl, Dorothy Sheldon. Shortly after Dorothy is found murdered with a slashed throat in the snow in the same vicinity as Charlotte Evans was found murdered last year and there is no apparent motive for either killings but with so many similarities in the m.o. the police could be after a repetitive psychopathic killer and fear he may kill again.