Part three of the "Three Mothers" trilogy which takes place in Rome and has to do with Mater Lachrymarum (The Third Mother).
The Mother of Tears (Italian: La Terza madre, literally The Third Mother) is a 2007 Italian-American supernatural horror film written and directed by Dario Argento, and starring Asia Argento, Daria Nicolodi, Moran Atias, Udo Kier and Coralina Cataldi-Tassoni. The film has also been billed in English-speaking media as Mater Lachrymarum, The Third Mother (English translation of the film's original Italian title) and Mother of Tears: The Third Mother.
Written by Argento, Jace Anderson, Walter Fasano, Adam Gierasch and Simona Simonetti, the film is the concluding installment of Argento's supernatural horror trilogy The Three Mothers, which began with Suspiria (1977) and succeeded by Inferno (1980). The film depicts the confrontation with the final "Mother" witch, known as Mater Lachrymarum.