The Strange Vice of Mrs Wardh
Lo strano vizio della Signora Wardh (original)
An unfaithful diplomat’s wife who finds herself hunted by a razor-wielding sex maniac while simultaneously haunted by her own depraved desires.
Starring Edwige Fenech, George Hilton, Ivan Rassimov, Conchita Airoldi, Manuel Gil, Carlo Alighiero, Alberto de Mendoza, Bruno Corazzari, Luis de Tejada, Marella Corbi
Watch "The Strange Vice of Mrs Wardh" from streaming services FlixOlè, Amazon, shudder-shudder-subscription released in 1971. It's a crime and mystery movie, and has a rating of 6.9 out of 10 from Imdb which is usually fine for this kind of movie.