That's Not My Neighbor gives you a surprisingly difficult job: deciding who is allowed into an apartment building. Every visitor has a story and an identity to verify, but a wrong detail on an ID or an unfamiliar feature can be enough to make you stop and investigate.
Most of the tension comes from the little things. Names, photos, documents, and other details need to match before you can confidently open the door. Miss a suspicious clue and a doppelgänger could slip inside, turning an ordinary workday into something much more unsettling.
There is no need to rush through every visitor. Taking time to compare the information on hand can prevent careless mistakes, especially when several people look convincing. As you become more familiar with the checks, spotting the odd one out starts to feel much more natural.