Films known abroad as "gialli" are called thrilling or simply "thriller" in Italy, the first term usually referring to Italian 1970s classics by directors like Dario Argento or Mario Bava.

"Giallo" films are characterized by extended murder sequences featuring excessive bloodletting, stylish camerawork and unusual musical arrangements. The literary whodunit element is retained, but combined with modern slasher horror, while being filtered through Italy's longstanding tradition of opera and staged grand guignol drama. They also generally include liberal amounts of nudity and sex.

Gialli typically introduce strong psychological themes of madness, alienation, and paranoia. For example, Sergio Martino's Your Vice is a Locked Room and Only I Have the Key (also known as Eye of the Black Cat) was explicitly based on Edgar Allan Poe's short story "The Black Cat".

They remain notable in part for their expressive use of music, most notably by Dario Argento's collaborations with Ennio Morricone and his musical director Bruno Nicolai, and later with the band Goblin.