Inferno is a 1980 Italian supernatural horror film written and directed by Dario Argento, and starring Irene Miracle, Leigh McCloskey, Eleonora Giorgi, Daria Nicolodi, and Alida Valli. The plot follows a young man's investigation into the disappearance of his sister, who had been living in a New York City apartment building that also served as a home for a powerful, centuries-old witch. A thematic sequel to Suspiria (1977), it is the second installment of Argento's Three Mothers trilogy. The long-delayed concluding entry, The Mother of Tears, was released in 2007. All three films are partially derived from Thomas de Quincey's 1845 work Suspiria de Profundis, a collection of prose poetry in which he proposes the concept of three "Ladies of Sorrow", concurrent with the three Fates and Graces in Greek mythology.