I Saw What You Did (1965)

I Saw What You Did (1965), produced and directed by William Castle.

Two teen best friends plus a kid sister have this fun game where they call random numbers from the phone book and put on breathy sex-kitten voices to ask indiscreet questions. One of their favorite bits is to say "I saw what you did and I know who you are".

Oops. You shouldn't say that to some people. It isn't safe.

Combine the light teen girl fun of The World of Henry Orient (1964) with the shower scene from Psycho (1960) and add Joan Crawford, age 60 and still hungry for John Ireland. Only from the mind of William Castle.

It's not a good film and the acting is often awkward but if you stick with it you sort of get pulled into that world. Teen-thrill filmmaking from the pre-gore years, juvenile delinquents who mean no real harm. And yet the shower murder is pretty horrific.

Young Andi Garrett is awfully familiar looking, but she has only a brief filmography so I must be thinking of someone else:

Photographed by Joseph F. Biroc and the lighting is actually quite good.

Goofy soundtrack, way too light to help the mood. Remade for TV in 1988.

Available on Blu-ray from Shout Factory. The first reel with credits is in poor shape but image quality improves thereafter. Beware of a full-frame cropped DVD-R from Universal.