I watched this 1965 Universal Pictures “I Saw What You Did” action/suspense/horror movie on Svengoolie. William Castle touted this film as UXORICIDE, knowing that most people would not know the true meaning of the word. It is defined as a man killing his wife or girlfriend. Two teenage girls, Libby and Kit are spending an evening together, Libby’s parents are on a trip, overnight, leaving her in charge of her young sister, Tess. They start calling phone numbers, randomly from the phone book, and pranking whoever answers.