You are a doorman/doorwoman/doorperson you work at a apartment complex for demons, you have to find the skinwalker/doppelganger amongst the demons. None of them look normal neither normal demon nor skinwalker/doppelganger. The demons are not your problem, the skinwalkers will kill you ASAP if you let just one in. and in this world demons have gender. They have to give you their ID and their Request Form and be on that day's list of being let inside