A suspenseful identity verification game where you play as a doorman checking residents entering an apartment building. Each person presents an ID and claims to live in a specific apartment. Your job is to carefully examine their appearance, compare it to official records, and determine if they are legitimate residents or dangerous doppelgangers trying to infiltrate the building. Look for subtle differences in facial features, inconsistencies in documentation, and suspicious behavior. Make the wrong choice and let a doppelganger in, and the consequences could be deadly. Keep the building safe by being vigilant and thorough in your inspections.