Fifty years ago, human politicians made a secret pact with the vampire enclave. The first vampire, Lester, left the humans alone in exchange for blood supplies and the ability to conduct his business. The president was given control of parliament and the ability to manufacture lethal weapons to increase his influence in the world.

But the humans' plan got out of hand. The vampires took the upper hand and took over the city. A hunt for the president began. Urgent testing of a poison that sends vampire blood when bitten began. This poison was supposed to save the president, but he never waited for the final vaccine.

[From Itch.io]