Billy Morrow has been locked in his room all his life. His only contact with the outside world - a small window driv-in theater across the street. Night after night, year after year, as the screen plays slash and back horror films, Billy has received a deadly dose of murder and mayhem. But tonight, Billy has escaped. Drawn to the drive-in, and masked by the screams from the screen, he does the only thing he knows how to do - kill.