Phenomena (1985) DVD

Jennifer Connelly stars as Jennifer Corvino, the daughter of an American film star, who enrolls in a prestigious Swiss boarding school under the tutelage of the prudish Mrs. Bruckner (played by frequent Argento collaborator and former beau Daria Nicolodi).

Possessing a unique telepathic gift, Jennifer is capable of communicating with insects on an instinctive level, often while sleepwalking. This trait soon brands her a freak among her snooty classmates but makes her a valuable asset to entomologist Dr. MacGregor (Donald Pleasence), who is currently employing the innate forensic skills of insects to aid police in tracking a serial killer targeting the boarders at Jennifers school.