No story? Im sorry, you obviously haven't looked at the hidden lore, the 10 book novel series, the Golden gun, and how the elevator states 43 at the start, signifying how its 1943, and this is obviously a mafia being taken down, by this guy, who we can theorize is named matt because thats the only name this mafia could hate.
This is a joke on Fnaf and all that hidden lore bs, in case you can't tell