Trick of the Eye (also known as Primal Secrets) is a 1994 American made-for-television psychological thriller film starring Ellen Burstyn and Meg Tilly. Directed by Ed Kaplan, it is based on the 1992 novel of the same name by Jane Stanton Hitchcock. The film originally premiered on CBS as a presentation of CBS Sunday Afternoon Showcase on October 23, 1994.