Ænigma is a 1988 Italian horror film directed by Lucio Fulci and was produced by Boro Banjac, Walter Brandi and Ettore Spanuolo.

The plot evolves around supernatural and paranormal phenomena in relation to violent deaths occurring in an American college perpetrated by a newcomer who is possessed by a serial killer's ghost.

Sometime later, a new girl named Eva Gordon arrives at the school, where she is shown around by the stern headmistress Miss Jones and given Kathy's old room.

Eva has somehow been possessed by the spirit of the comatose Kathy who begins using supernatural powers of telekinesis and magic to exact revenge against all those involved in the prank that put her in a coma.

That night while waiting for Eva to show up at the gym for their secret rendezvous, the narcissist Mr. Vernon is attacked and strangled by his reflection when it jumps out of a mirror.

The following night, Virginia Williams, one of the students involved in the prank against Kathy, is attacked in her bed and suffocated to death by an onslaught of snails that appear and then disappear.

At the hospital, Jenny arrives for a late-night date with Dr. Anderson, when she gets lost in the gloomily lit building, thanks to Eva using Kathy's magic skills of mind-bending.

Upstairs in Kathy's hospital room, her mother has pulled out all her intravenous drips, removed the respirator, and turned off the life support systems.

[3] For the Italian film journal "Nocturno", cinematographer Luigi Ciccarese stated that Fulci was a maestro, who sometimes did things that at first did not seem to make sense - until one saw the results.

[5] From contemporary reviews, Philip Nutman and Mario Cortini wrote in Gorezone that Ænigma lacked an original premise while "Fulci enlivens the mundane proceedings with a handful of ultragory scenes, include a naked girl violated by an army of slugs and snails".

[8] Giusti remembers that the fans expected Fulci's return to the gore of the early 1980s, but that the film was not wholly successful since it was too similar to many others with its frightened girls and college slashings.