"Damaging" is misspelled on the opening title card: ...And Then A Violent Shock That Left a Deep Impression On The Mind And Damagen [sic] It Permanently...
Final film of Eleonora Rossi Drago.
Curious how the year after this movie is released, Eleonora Rossi Drago attempted to suicide (with gas) and Anna Maria Pierangeli killed herself in Beverly Hills.
The location (Torre di Cerrano, near Pescara, Italy) is the same of 'Delirium' (2002) cult movie by Flavio Sciolè.
Third to last film of Pier Angelli, followed by "Quell'amore particolare" (1970) and, finally, "Octaman" (1971).