After moving into a new department in Manhattan, where a married couple Guy and Rosemary, struggle against the strange incidents that begin to take place, after the suicide of their neighbors, who have been committed suicide mysteriously, the thing that makes their rage and fear.
It's one of the most powerful films ever made about Devil worship because Polanski expertly winds up the paranoia with spooky atmospherics and morbid humour.
Weird obstetricians, mysterious night noises and even Farrow's improvised stroll into actual oncoming traffic add up to a bustling nightmare that's spawned many a Black Swan since.