Mark explores the explosion of American films of the late 1960s and 70s which dragged horror kicking and screaming into the present day. With their contemporary settings and uncompromising content, films like Night of the Living Dead and The Texas Chain Saw Massacre remain controversial. But Mark argues that these films - often regarded as only being for hardcore fans with strong stomachs - have much to offer. Made by pioneering independent filmmakers, they reflected the social upheavals of American society and brought fresh energy and imagination to the genre.