In our scene, the player takes on the role of a CIA agent in the 1920s. Prior to the boss fight, the player has been investigating a strange case of murders, all of which were done via poison. Eventually, they discover that the genetically mutated Rat King has been creating “human poison” in an abandoned warehouse in retaliation for all the uses of rat poison. The Rat King plans to dump the stockpile of human poison into a river to poison all of humanity through Earth’s waterways. The player has been sent as a last-ditch effort to defeat the Rat King. Previous attempts have failed, with agents becoming lab rats for the Rat King’s poison. Armed with a glock and a will to live, the player enters the Rat King’s warehouse to save humanity from certain death.