During disco's 1970s heyday, 17-year-old busboy Eddie Adams is looking for a break when he is spotted by veteran porn director Jack Horner. Horner rechristens Eddie 'Dirk Diggler' and makes him a star of adult cinema. Enjoying his new-found fame and a hedonistic lifestyle to match, Eddie is little prepared for the changes in the porn industry that are to come with the arrival of the 1980s and the rise of video tape