When fashion house model Isabella is murdered by a masked assailant, an investigation begins and her diary is found, detailing the vices of the fashion house and a complex web of blackmail and secrets. As panic spreads and the faceless killer searches for the diary, models are murdered one by one.

Mario Bava had effectively invented giallo with The Girl Who Knew Too Much. A year later, he returned to codify the genre with this hugely influential masterwork. Revered by Scorsese and Argento, Blood and Black Lace reinvigorated Italian horror, and paved the way for the slashers to come.