Hell suffers from overpopulation and decides to solve this problem by regularly exterminating its own citizens. Princess AdaCharlie wants to find an alternative to the mass slaughter. She opens a hotel so that sinners reform and end up in Heaven. A devoted partner and Charlie's best friend Veggi, and their first client, the adult-film star Angel Dust, support her view. But when the mighty sinner Alastor, known as the Radio-Demon, offers Princess Ada help, her crazy dream has a chance to come true.