Acorn TV recently dropped the first episode of Agatha Raisin Season 3. This episode is Agatha Raisin & The Haunted House. Is there any news about Agatha Raisin Season 4 from the streaming network? Agatha Raisin Season 3 The first of the Season 3 episodes, Agatha Raisin & The Haunted House dropped on October 28.