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 in Germany but realizes, after a series of brutal murders, that the academy is a front for a supernatural conspiracy. It also features Stefania Casini, Flavio Bucci, Miguel Bosé, Alida Valli, Udo Kier and Joan Bennett, in her final film role.