Madman (1982)

At a summer camp in the woods, Max (Carl Fredericks), one of the counselors, decides to regale the campers and other counselors with a frightening tale of a local serial killer, Madman Marz (Paul Ehlers). As the story goes, if his name is uttered above a whisper, he will return to the area to kill. Unimpressed and unafraid, an impudent teen, Richie (Jimmy Steele), feels compelled to test the legend -- despite the deadly consequences. Within moments, Madman Marz is back again for blood.