I'm pretty sure this is a joke. Wes Craven was at a party talking with friends, and they bet him he couldn't rattle off an entire movie idea, complete with exposition, stock characters, and several convoluted twists, in 10 minutes. Well he did, and he took the bet to the next level: he made the movie. The dialogue we get is taken directly from the unedited (save for some minor grammatical and spelling errors) first draft. Thanks, Wes! And to make the joke even better, Craven's only real device is making sure you can't tell whether the movie intends to be serious or funny or both or neither.