Sarah Paulson is one terrifying Nurse Ratched in Ryan Murphy and Ian Brennan’s One Flew Over the Cuckoo’s Nest origin series Ratched. Netflix has released the first trailer for the series, along with key art (below), that stars Paulson as a younger version of the diabolical nurse.

Per Netflix’s logline, in 1947, Mildred (Paulson) arrives in Northern California to seek employment at a leading psychiatric hospital where new and unsettling experiments have begun on the human mind. On a clandestine mission, Mildred presents herself as the perfect image of what a dedicated nurse should be, but the wheels are always turning and as she begins to infiltrate the mental health care system and those within it.

Ratched premieres Friday, September 18 on Netflix.