[2] In 1910 in Scotland, the ailing Doctor Hichcock (Elio Jotta), confined to his wheelchair, presides over seances in which his housekeeper, Catherine (Harriet Medin), acts as the medium.

According to Hichcock's theory, shots of lethal poison followed by an antidote could cure his physical disability shortly after.

The younger Doctor Livingstone (Peter Baldwin) stays with him in the house to regularly administer this dangerous treatment.

Hichcock's wife Margaret (Barbara Steele) finds living with her husband increasingly unbearable.

One night, Catherine, apparently possessed by Hichcock, speaks in his voice and tells Margaret that his valuables are buried beneath his coffin.

Margaret slashes him to death with a razor and drags him into the cellar, where she uses kerosene from a lamp to burn his body.

Margaret is drawn to Hichcock's study by the ringing of his handbell, where she contemplates suicide by poison, pours it into a glass of gin, but does not drink it.

[4] The music score is credited to "Franck Wallace", whom Italian magazine Bianco e Nero and the Monthly Film Bulletin claim is a pseudonym for Franco Mannino.

[4] Riccardo Freda had directed Barbara Steele in the horror film The Horrible Dr. Hichcock the previous year.