The opening scene Luke Roman is standing outside of a house looking up. It's a homage to the iconic poster of The Exorcist (1973) with Max von Sydow.
When introducing Susan to the office manager Zoe, Luke says "Why don't you wait to take Susan to your dark, nihilistic place until after she's filled out her TD1 shall we?" The TD1 is a Canadian tax form filled out by new employees. He says W-4 in the United States.