This book focuses on how the abject spectacle of the monstrous feminine has been reimagined by recent and contemporary screen horrors focused on the desires and subjectivities of female monsters who, as anti-heroic protagonists of revisionist and reflexive texts, exemplify gendered possibility in altered cultures of 21st century screen production and reception. As Barbara Creed notes in a recent interview, the patriarchal stereotype of horror that she named the monstrous-feminine has, decades later, embarked on a life of her own. Focused on this altered and renewed form of female monstrosity, this study engages with an international array of recent and contemporary screen entertainments, from arthouse and indie horror films by emergent female auteurs, to the franchised products of multimedia conglomerates, to 'quality' television horror, to the social media-based creations of horror fans working as pro-sumers. In this way, the monograph in its organisation and scope maps the converged and rapidly changing environment of 21st century screen cultures in order to situate the monstrous female anti-hero as one of its distinctive products.