In the sumptuous house the two young men meet strange characters: a gypsy woman, a prostitute and a disquieting drunkard.

In reality, Mr. Antonio is a madman who created a mechanism, a sort of robot capable of sucking blood from human bodies.

[4] Ghione announced a different film during this period, an adaptation of Il male oscuro, a novel by Giuseppe Berto, which never came to fruition.

[5] Il pratto macchiato di rosso was distributed theatrically in Italy by Drago Film and had its premiere on 2 March 1973 in Fiorenzuola d'Arda.

[6] Curti declared that Il prato macchiato di rosso retained a small level of notoriety in the village of Fiorenzuola where the memory of the shooting of the film remained vivid still in 2018.