Shivers (film)

Shivers filmed as Orgy of the Blood Parasites alternate titles The Parasite Murders, They Came from Within, and Frissons for the French Canadian distribution is a 1975 Canadian science fiction body horror film written and directed by David Cronenberg.

Hobbes implants the parasites in his teenaged mistress, who promiscuously spreads them throughout the ultramodern apartment building outside Montreal where they live. Hobbes, unable to undo the damage he caused, kills his mistress and then commits suicide. The police are called and the crime looks to be open and shut.As the story develops, one of Hobbes sexual partners begins to feel ill and returns from work. Here we see the parasite emerge from its host and escape into the building where it emerges and attacks a number of people. The pace of the story quickens when the communitys resident physician, Roger St. Luc uncovers some of the research that Hobbes had been working on. St. Luc encounters an elderly resident who has been attacked and burned by the parasite. St. Luc, along with his assistant and girlfriend, Nurse Forsythe, move the elderly residents to their room. They attempt to stop the parasite infestation before it overwhelms the citys population. ........

Source: Wikipedia