Phenomena is a 1985 Italian giallo film produced and directed by Dario Argento, who co-wrote the screenplay with Franco Ferrini. It stars Jennifer Connelly, Daria Nicolodi, Dalila Di Lazzaro, Patrick Bauchau and Donald Pleasence. The plot concerns an American teenage girl (Connelly) at a remote Swiss boarding school who discovers she has psychic powers that allow her to communicate with insects, and uses them to pursue a serial killer who is targeting young girls at and around the school.
