The film is about a psychopath (François Montagutt) who leaves body parts outside the house of a young widow (Joanna Pacula).

Body Puzzle was a return to theatrically released films from director Lamberto Bava after a series of television works.

[3] The film's script was the work of an American writer Bruce Martin that was re-written by Teodoro Agrimi and Bava with the author's permission.

[2] Bava was also frustrated with the score by Carlo Mario Cordio, and during post-production had it replaced with parts of Carl Orff's Carmina Burana.

[3][4] Legal issues due to the use of Orff's music without permission led to the film being re-released and slightly re-edited with Modest Mussorgsky's Night on Bald Mountain used in its place under the title Misteria.