The Devil's Daughter a.k.a. The Sect is a 1991 Italian horror film co-written and produced by Dario Argento, directed by Michele Soavi, and starring Kelly Curtis and Herbert Lom. It follows an American schoolteacher living in Frankfurt who finds herself at the center of a plot devised by a Luciferian cult.

Dario Argento is an Italian film director, screenwriter and producer. His influential work in the horror genre during the 1970s and 1980s, particularly in the subgenre known as giallo, has led him to being referred to as the "Master of the Thrill" and the "Master of Horror".