I will steal a blue light from a Christmas display, film some guy in the monster mask for 10 seconds, then spend the rest of the day shooting footage of kids running in random directions and shouting. I'll be making millions any moment. A couple people we don't know are murdered by some monster. At least one closeup of somebody's horrified face is required. They are failed models who each have one-dimensional or stereotypical personalities.
Characters go to bed for the night.
Monster appears, but doesn't do anything significant. The following night, the least desirable character is killed. People wonder where undesirable character is, but don't look too hard. One of them finds some obvious clue the monster left behind. Monster kills second least-desirable character.