Mr. Maxwell is a professor of French poetry at the local university. He wears a disguise so that he doesn’t alarm his students. Truthfully, he never would have gotten the position
if the faculty had any idea he was a monster. He wears the suit and hat to look “normal”. The moustache isn’t even real. He cuts the hair from his head and then tapes it to his face. Mr. Maxwell felt having a moustache would distract his colleagues from noticing that he only has one eye.