Phenomena (1985)

In Switzerland, Jennifer Corwin, teenage daughter of a famous actor, arrives at an expensive boarding school and rooms with French schoolmate Sophie. Jennifer is a sleepwalker and she can also communicate telepathically with insects. While sleepwalking, she meets and befriends a Scottish entomologist, Prof. John McGregor, and his chimpanzee Tonga. Jennifer decides to help Dr. McGregor's investigation of a serial killer who is murdering young girls in the area. When her friend Sophie disappears and Dr. McGregor is killed, the scared Jennifer decides to call her lawyer and return to Los Angeles. She is invited to stay in the house of Frau Brückner while she waits for her flight, but the serial killer is already after her.

IMDb: https://www.imdb.com/title/tt0087909