Suspiria is a 1977 Italian supernatural horror film directed by Dario Argento, who co-wrote the screenplay with Daria Nicolodi, partially based on Thomas De Quincey's 1845 essay Suspiria de Profundis. The film stars Jessica Harper as an American ballet student who transfers to a prestigious dance academy but realizes, after a series of murders, that the academy is a front for a coven of witches. It also features Stefania Casini, Flavio Bucci, Miguel Bosé, Alida Valli, Udo Kier, and Joan Bennett, in her final film role.

Daria Nicolodi was an Italian television and film actress and screenwriter, and associated mostly with the films of director Dario Argento.