_**Poe mixed with Phantom of the Opera**_ At a Grand Guignol-like theater in turn-of-the-century Paris a troupe is beset by a shadowy acid killer. Jason Robards plays the director/actor, Christine Kaufmann his young wife, Lilli Palmer her mother, Herbert Lom a mysterious stalker, Michael Dunn a dubious dwarf and Adolfo Celi the inspector. “Murders in the Rue Morgue” (1971) is not a film version of Edgar Allan Poe’s story, which the viewer is keyed-off to right away with the revelation that the play featured at the theater _IS_ Poe’s “Murders in the Rue Morgan.” The director & writer de...