The first of its kind, this study examines the exemplars of hardcore horror--Fred Vogel's August Underground trilogy, Shane Ryan's Amateur Porn Star Killer series and Lucifer Valentine's "vomit gore" films. The author begins with a definition and critical overview of this marginalized subgenre before exploring its key aesthetic convention, the pursuit of realist horror. Production practices, exhibition and marketing strategies are discussed in an in-depth interview with filmmaker Shane Ryan. Audience reception is covered with a focus on fan interaction via the Internet.