A haunting tale of love and imperialism that takes place in 1927 — 60 years after the death of Empress Carlota's beloved Emperor Maximilian before a firing squad in Mexico. Narrated by the Empress from her private chamber in Belgium's Bouchout Castle, Adiós Mamá Carlota revisits the rise and fall of Emperor Maximilian's reign as Carlotta is troubled by her memories. She finds herself before the royal court, entertaining distinguished ghosts: Maximilian, Napoleon III, Benito Juarez and Abraham Lincoln. The ghost of Conchita, the feisty "other woman" in her past, goads and provokes her as her spiritual gadfly, forcing her to reassess her life. Carlota questions her survival: why has she outlived so many loved ones that no trace of her vanished world remains? Ultimately, Carlota's dilemma pivots on her guilt and self-doubt about her abandonment of Maximilian, and the lingering regrets of their unfinished love story.