A cycle of stylish, psychosexually loaded Italian crime films which peaked sometime in the late '70s. The name means "yellow," and refers to the yellow covers of the pulp detective [[{{Literature}} novels]] which were adapted into the first of the films. Gialli are generally plotted as "puzzle" mysteries (with either [[PoliceProcedural police]] or [[AmateurSleuth amateurs]] investigating), but with a heavy admixture of [[HorrorTropes horror]] and thriller elements.

Major directors of gialli include Creator/DarioArgento, Mario Bava, and Creator/LucioFulci.

Many American movies have been influenced by gialli. These include ''BasicInstinct'', ''KillBill, Vol. 2'' (when it isn't being a SpaghettiWestern), the ''{{Hostel}}'' movies, and pretty much anything by Creator/BrianDePalma. {{Slasher Movie}}s from ''Film/FridayThe13th1980'' onward have appropriated bits and pieces of the giallo sensibility, as well.

And now you to can create your own, with the [[http://www.braineater.com/misc/giallo_intro.html Do-It-Yourself Giallo Kit]].

A related genre is the German "krimis".

!!Common tropes include:
* AcquittedTooLate
* AnimalMotifs
* DeathBySex
* DropDeadGorgeous
* EveryoneIsASuspect
* FilmNoir: Somewhat comparable to this genre, but much more colorful, surreal, and gory.
* FreudianExcuse
* GoingByTheMatchbook
* HandOfDeath: Almost always the black-gloved version.
* KensingtonGore
* MoodLighting
* MotiveRant
* NeverOneMurder
* OverlyLongTitle: Sometimes, titles are whole sentences. Example - ''[[http://www.imdb.com/title/tt0069421/?ref_=nm_knf_t3 Your Vice is a Locked Room and Only I Have the Key]]''
* PeekABooCorpse
* RedHerring: Often an incredibly cheap variety in which one character is ''clearly'' extremely suspicious, creepy and weird and end up dead like any other victim without so much as a HandWave as to their odd behavior.
* SerialKiller
* TheSummation
* [[WidgetSeries Weird Italian Thing]]
* WordSaladTitle