Phenomena (aka Creepers)
The killer is the mutant dwarf teenage son of Mrs. Bruckner (Daria Nicolodi). Mrs. Bruckner is the one who kills Dr. McGregor (Donald Pleasence) and Inspector Geiger (Patrick Bauchau) to protect her son. In the climax aboard a motorboat, Jennifer (Jennifer Connelly) uses her power of telepathy to command all flies and other insects to attack the killer (who falls off the boat and drowns). Mrs. Bruckner is killed by Dr. McGregor's trained chimpanzie, Inga, before she can kill Jennifer.
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