The air in “Rotten Legacy” is thick with the kind of unspoken resentments that only families of immense power and crumbling morality can cultivate. We are plunged into the world of the Seligmans, a media dynasty whose influence is as vast as its internal fractures are deep. The return of its patriarch, Federico Seligman, from a two-year battle with cancer, doesn’t signal a heartwarming reunion. Instead, it’s the catalyst for an implosion.

Federico, finding his empire and heirs in disarray, decides his final act will be a tell-all interview, a posthumous grenade lobbed into the foundations of everything he built. This Spanish series immediately establishes a potent brew of ambition, familial strife, and the murky ethics of media control, promising a deep dive into what happens when a king surveys his tainted kingdom and prepares to write its final, damning chapter.

A Gallery of Gilded Cages: The Seligman...