I Start Counting (1969)

I Start Counting (1969), produced and directed by David Greene.

A teen girl has a big crush on her adult brother and begins having romantic delusions and erotic fantasies about him. She's adopted and a priest confirms this would not be actual incest, but still it is an awkward situation. I've read that unrelated children raised together tend to obey the incest taboos.

She begins to suspect that he is a local serial killer and plays girl detective. We suspect that such is her infatuation that she would not turn him in even if it were true.

As a thriller this is slow-boil with a lot of coming of age, slice of life, and on-location late 1960s ambiance. I was reminded of some other films:

Some notable features:

Photographed by Alex Thomson -- Alien 3 (1992), Excalibur (1981), Legend (1985).

Available on Blu-ray from Fun City, associated with Vinegar Syndrome. I had never heard of the title before it appeared on disc.

Samm Deighan provides a valuable commentary track, with much to say about our character's sexual awakening, handled sensitively and without exploitation. She points out parallels and contrasts with Hitchcock's Shadow of a Doubt (1943).

She finds the modern apartment ugly, a step down from the old house.