Boston is being terrorized by a series of seemingly random murders of women. Based on the true story, the film follows the investigators path through several leads before introducing the Strangler as a character. It is seen almost exclusively from the point of view of the investigators who have very few clues to build a case upon.
In 1950s Canada, during a commercial flight, the pilots and some passengers suffer food poisoning, thus forcing an ex-WW2 fighter pilot to try to land the airliner in heavy fog.
A government agent's son wins respect and love when he challenges counterfeiters.