This is really the only time in his career when Fulci actually seemed to be imitating Dario Argento. Ironic that Fulci should choose to rip off PHENOMENA, which is probably Argento's worst film.
AENIGMA also borrows from CARRIE and the atrocious Australian horror flick PATRICK. But like I said, it all adds up to Fulci's worst film.
In this case the "Carrie" figure is named Kathy, and is she ever tormented. Her classmates dress her up and set her up on a fake date (sound familiar anyone) and then listen in and make fun of her. Well the trouble is they chase her out to the road where she is hit by a car and put into a coma with no brain activity. Somehow from there she is able to channel her rage at her classmates through the new girl in school called Eva.
Eva then infiltrates the popular kids and starts bumping them off (since she is being mind controlled by Kathy of course). It does take a while for much to happen, and there are large breaks in between murders so it does sort of drone on in places, but then when we see some of the creative murder methods it becomes worthwhile. We all know Fulci is capable of some great gore, and this isn't necessarily gory but there is a fantastically unique 'death by snails' scene that should be seen by most. I can't say that anyone should rush out and see this one, but if you like "Carrie"-style films that aren't as great then this should fill the void. Also fans of Fulci's will want to see this even if it's not his best effort.