Mary, darling - the Moon is going to be full tonight... And something strange, horrible, and monstrous happens to me when the Moon is full... So, I've got to lock myself in my room tonight... And Mary - I need your most solemn promise... that no matter what you might hear coming from inside my room - you can't open that door!   Those of us who are baby boomers (and grew up watching and enjoying Lon Chaney Jr. movies) - know exactly what happened next...