This passage seemingly explains the events that transpired in Suspiria —the witches at the Tanzakademie called on the strength of Helena Marcos in honor of Mater Suspiriorum—while setting up the events of Inferno and the yet to be produced Mother of Tears (which, according to Daria Nicolodi, has been ready to film since 1984).
Jump from Deep Red, past the balls-brilliant Suspiria , to Suspiria 's "sequel," Inferno, the second in a trilogy finally completed by 2007's Mother of Tears that seeks to document the influence of three witches on the world, gathering their power in a trio of cities: Freiberg, Germany in Suspiria ; Rome, Italy in Mother of Tears ; and New York in Inferno.
The movie is billed as the completion of Argento's trilogy — the other two films are "Suspiria" (1977) and "Inferno" (1980) — and the distinction is important because only Argento fans hard-core enough to have seen and loved the first two films will be able to tolerate this bloodthirsty, aimless mess.
A follow-up to the genre classic Suspiria and the somewhat lamentable Inferno, Mother of Tears traces the exploits of a young scholar who, after unwittingly unleashing a long-hidden evil, discovers that she is the only one who can stop the malicious third mother, the final in a trio of witches that operate like the Three Fates, and represent an incarnation of chaos.
SAN FRANCISCO INTERNATIONAL FILM FESTIVAL: Dario Argento's Mother of Tears apparently completes a trilogy begun with Suspiria (1977) and Inferno (1980), but fans expecting anything along the lines of those classics had better give up now.
The other two witches gave up the ghost in the previous pictures in this "trilogy": At one point a character makes a reference to a "dancer named Suzy Bannion," the witch-killer played by Jessica Harper in Argento's 1977 Beaux-Arts head trip "Suspiria"; the second mother bit the dust in Argento's 1980 "Inferno."