Deep Red, also known as The Hatchet Murders, is a 1975 Italian giallo film directed by Dario Argento and co-written by Argento and Bernardino Zapponi. It stars David Hemmings as a musician who investigates a series of murders performed by a mysterious figure wearing black leather gloves. The cast also stars Daria Nicolodi, Gabriele Lavia, Macha Méril, and Clara Calamai. The film's score was composed and performed by Goblin, the first in a long-running collaboration with Argento.

Daria Nicolodi was an Italian television and film actress and screenwriter, and associated mostly with the films of director Dario Argento.