The Bloodstained Butterfly (Italian: Una farfalla con le ali insanguinate) is a 1971 giallo film directed by Duccio Tessari.

[1] A young French woman named Françoise Pigaut (Carole André) meets a man in a public park in the rain.

Giorgio (Helmut Berger), a young pianist, starts dating Sarah, but he is also distant from his family and buries his disgruntlement in drinking.

As the police don't give much consideration to the similarities, a caller claiming to be the killer taunts the inspector on the case, Berardi (Silvano Tranquilli), saying he'll kill someone else.

AllMovie gave the film a positive review, writing "this beautifully assembled giallo is among the best of its time" and that it features a "genuinely intelligent script, a rarity in a subgenre generally known for flamboyant visuals at the expense of narrative cohesion.