When the residents of a luxury apartment complex outside Montreal are infiltrated by parasites and transformed into violent, sex-crazed maniacs, it's up to Dr. Roger St. Luc to contain the outbreak from spreading to the city.
Paul Hampton
as Roger St. Luc
Joe Silver
as Rollo Linsky
Lynn Lowry
as Nurse Forsythe
Allan Kolman
as Nicholas Tudor
Susan Petrie
as Janine Tudor
Barbara Steele
as Betts
Ronald Mlodzik
as Merrick
Barry Baldaro
as Detective Heller
Camil Ducharme
as Mr. Guilbault
Hanna Poznanska
as Mrs. Guilbault
Wally Martin
as Doorman
Vlasta Vrana
as Kresimer Sviben