Well let me say that, first of all, I am a William Castle fan. Second of all, I think the man WAS capable of making pictures that didn't involve gags or gimmicks. He made very few of them during the height of his career, mainly to silence critics who accused him of being a one-note filmmaker. That beind said, I was very disappointed with I Saw What You Did, which turned out to be (at least to me) one of the worst films he ever made. I haven't even seen them all yet and I know it has to be. This isn't even one of his movies where it's so BAD it's good. It's just bad. The kind of movie you'd find in the dollar bin at a rundown grocery store. Even so, I have to give it two stars. Mainly due to the fact that I'm actually a fan of William Castle and the concept is a pretty good one, but it just falls apart everywhere else in the process. The story is FAR longer than it needs to be. The intention, somewhat, is to turn screws in the tension itself, but it fails miserably...as does the horrible ending. The acting is terrible all around, even from a veteran Joan Crawford, who usually shines in these kinds of roles. The music is ludicirous, as well. I kept expecting to see kids on surfboards during moments in the score. What's sad is if a lot of that music had been excised from the flick, it might have fared a little bit better. And while they were at it, they could have trimmed the story down EXCESSIVELY and lopped off that goofy ending. It's just a mess altogether. See it if you're a William Castle fan. Otherwise, skip it...unless you want to see what NOT to do with a story.