Midnight Masquerade

A modern twist of the fairytale of Cinderella.

Sam is a security guard who works at elevator entrance in huge office building in which most of the movie takes place. He clearly works 24/7. Not only it was never show that anybody else work on his place, but it was especially absurd at Halloween - he was working in the morning, afternoon, evening, night, and then the very next morning, and he was very important for the plot. This happened again in a few days later.