Vivienne Medrano's adult animated musical comedy series Hazbin Hotel wrapped its sophomore season with an exciting finale titled "Curtain Call" on November 19.Throughout the sophomore season of the comedy series, the Radio Demon Alastor was reduced to a mere pet by the leader of the cannibal community in Hell, Rosie. While Alastor was a strong overlord, his ambition and greed to become the most powerful sinner in Hell reduced his status to Rosie's pet and she controlled him on every step.As revealed in a flashback in Hazbin Hotel Season 2, Alastor summoned Rosie to Earth before his death and asked her to make him “the most powerful Sinner in Hell” in exchange for his soul. This deal directly came into play when Alastor died and was sent to Hell, making his life more miserable.More on this in our story.Exploring Alastor's deal with Rosie in Hazbin Hotel View this post on Instagram Instagram PostHazbin Hotel Season 2 Episode 4 titled 'It's A Deal' finally revealed Alastor's backstory on Earth and the terms of his deal with Rosie. The episode revealed that Alastor was a serial killer back on Earth, who used his victims in a ritual to gain power in Hell. His way of living and countless murders were proof enough that he would end up in Hell, which is why he thought of a plan to secure a comfortable and powerful place in the Underworld before his death.Following this thought, he summoned Rosie to his cabin and asked her to make him “the most powerful Sinner in Hell” in exchange for his soul and one unstated task. The leader of Hell's cannibal community was intrigued by Alastor's offer, which would bind him to her for eternity.The Hazbin Hotel flashback revealed how Alastor died of a gunshot wound the following day, binding him to Rosie. While Alastor rose to become the most powerful overlord in Hell, as part of his deal with Rosie, she essentially treated him like his pet. Alastor and Rosie shared an amicable relationship, but their dynamics were clear: Rosie was the dominant one, which troubled Alastor until he let Vox make him a prisoner.Was Alastor freed from Rosie's deal in the Hazbin Hotel Season 2 finale? View this post on Instagram Instagram PostAlastor became a powerful overlord in Hell but remained under Rosie's control until his new deal with Vox, which would only break if Vox touched Charlie Morningstar.The Hazbin Hotel Season 2 finale saw Pentagram City under attack. While the situation was intense, Alastor saw an opportunity to get out of both his deals with Vox and Rosie. Making Charlie remember their deal, Alastor asked her to declare Vox as “the most powerful Sinner in Hell”, which would free him from Rosie's deal. The moment Charlie announced Vox as the most powerful sinner, Alastor was freed from his chains (that bind him to Rosie), since Rosie failed to 'keep' her end of the bargain.Additionally, in his ultimate moment of victory, Vox forgets his deal with Alastor and places his hand on Charlie Morningstar, freeing the Radio Demon from his command as well. Thus, by a little cunning, Alstor killed two birds with one stone and freed himself from both of his deals.While Season 2 revealed the terms of Alastor and Rosie's deal, the latter's mysterious powers are still unknown. In an interview with Polygon, creator Vivienne Medrano teased that the terms of this deal will be a major plot point for Hazbin Hotel Season 3:''The Rosie and Alastor deal is the first stepping stone in a much bigger story that involves so much, moving into season 3. Obviously that is a perfect question: How is she that powerful? The answer could be many things, but the answer is in season 3. I'm very excited for people to see it.''You can stream Hazbin Hotel on Prime Video.For the latest scoops on your favorite TV shows and movies, follow SoapCentral.