Rosemary's Baby

Roman Polanski, USA, 1968

Mia Farrow in Rosemary's Baby

Mia Farrow in Rosemary's Baby

It is a creepy film and a crawly film, and a film filled with things that go bump in the night. It is very good.
— Roger Ebert

The Greatest Horror Film Ever Made? Very possibly. 1960s Uptown New York as a haven for cosmopolitan witches intent on bringing the child of Satan into the world. 

A classic of paranoia and creeping dread. Ruth ‘Harold & Maude’ Gordon rightly won Best-Supporting Actress Oscar for her unforgettably creepy performance as Mia Farrow’s elderly neighbour who might not be as kindly as she initially seems.