Dario Argento has made some of the most important horror films of the last thirty years. Films such as Deep Red, Tenebre, The Stendhal Syndrome, and his masterpiece, Suspiria, have frightened audiences with Argento`s signature style consisting of dizzying camera angles, elliptical imagery, and buckets of blood. This documentary on his work studies all of the giallo master`s films through his upcoming Sleepless. Argento himself comments on his career and divulges some of the secrets he has used in his craft. Also interviewed are Piper Laurie, Alice Cooper, and another master of horror, John Carpenter.