{ { Infobox film
| name = The Killer That Stalked New York
| image = The Killer That Stalked New York movieposter.jpg
| image_size =
| alt =
| caption = Theatrical release poster
| director = Earl McEvoy
| producer = Robert Cohn
| screenplay = Harry Essex
| based_on = { { based on|"Smallpox, the Killer That Stalks New York"1948 Cosmopolitan article|Milton Lehman}} | narrator = Reed Hadley | starring = Evelyn KeyesCharles KorvinWilliam Bishop | music = Hans J. Salter(as Hans Salter) | cinematography = Joseph F. Biroc(as Joseph Biroc) | editing = Jerome Thoms | studio = Robert Cohn Productions | distributor = Columbia Pictures | released = | runtime = 79 minutes76 minutes(Encore-Mystery Library Print) | country = United States | language = English | budget = }}The Killer That Stalked New York (also known as Frightened City) is a 1950 American film noir directed by Earl McEvoy and starring Evelyn Keyes, Charles Korvin and William Bishop. The film, shot on location and in a semi-documentary style, is about diamond smugglers who unknowingly start a smallpox outbreak in the New York City of 1947. It is based on the real threat of a smallpox epidemic in the city, as described in a story taken from a 1948 Cosmopolitan magazine article.
Plot
Arriving at New York City's Pennsylvania Station after a trip to Cuba, Sheila Bennet (Evelyn Keyes), who is smuggling $50,000 worth of diamonds into the country, realizes she is being followed by the authorities. She mails the diamonds to her husband, Matt Krane (Charles Korvin), instead of carrying them around, and then tries to shake the Treasury agent following her.
Feeling sick, Sheila nearly faints on the street, so a police officer takes her to a local clinic. While there, she encounters a little girl and inadvertently infects her. Sheila is misdiagnosed as having a common cold, and she leaves and returns home. After the girl is admitted to the hospital, she is found to have smallpox.
Meanwhile, Matt has been cheating on Sheila with her sister, Francie (Lola Albright), and then attempts to take off without either of them when the diamonds finally arrive through the mail. However, the fence cannot buy the diamonds because the police are searching for them. Matt will have to wait for ten days for the cash, so he cannot leave New York. Sheila confronts Francie, who kills herself afterward due to Matt's betrayal of them both. This gives Sheila more reason to get revenge on him.
Finding a growing number of smallpox victims, city officials decide to vaccinate everyone in New York to prevent an epidemic, but quickly run out of serum. This causes a panic in the city. Tracking the victims, agents realize that the disease carrier and the diamond smuggler are one and the same. However, an increasingly sick Sheila continues to elude capture. Still unaware that she has smallpox, she returns to the doctor at the clinic to get more medicine. The doctor explains her illness and tries to talk her into turning herself in, but she shoots him in the shoulder and escapes.
Sheila eventually catches up with Matt, who tries to escape from the police, but falls from a building ledge to his death. Sheila nearly attempts to drop herself from the ledge, until the doctor tells her the little girl she met had died. Sheila turns herself in and, before succumbing to the disease, provides authorities information on those she had contacted.