A Blade in the Dark (Italian: La casa con la scala nel buio) is a 1983 Italian giallo film directed by Lamberto Bava.Synopsis
Bruno, a composer, becomes involved in a series of murders of tenants who live in a villa. In a horror film Bruno is scoring a young child, taunted by cruel bullies, descends into a dark cellar after a bouncing tennis ball. The kids hear a scream and the ball bounces up to them, leaving bloody tracks on the wall. Sandra, Bruno's director, explains that her inspiration was the childhood of Linda, the villa's previous tenant.
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