The Fall of the House of Usher: What happened between Roderick and Dupin?

In the seventh episode of The Fall of the House of Usher, titled "The Raven," a lot unfolds between Roderick and Dupin. The episode reveals the true nature of their relationship and sheds light on the events that led to their falling out. Initially, Roderick works with Dupin to obtain confidential documents from Fortunato Pharmaceuticals, proving the company's misconduct in clinical trials. They plan to expose the forged signatures and hold the company accountable. However, when Roderick takes the stand in court, he unexpectedly renounces his collaboration with Dupin, claiming that he was the one who signed the papers. He goes so far as to accuse Dupin of harassment, resulting in his arrest for perjury.This betrayal deeply affects Annabel, Roderick's wife, who had hoped he would do the right thing. While Madeline, Roderick's sister, had supported their plan, she realizes that Annabel genuinely cared about her husband's integrity. Disappointed but acknowledging their wrongdoing, Madeline leaves. In the present day, Madeline, still determined to rise to power, tries to convince Arthur Pym to back her in an attempt to oust Roderick as the CEO of Fortunato Pharmaceuticals. She envisions using artificial intelligence to steer the company away from its controversial drugs, which have tarnished its reputation.Amidst all this, Madeline is haunted by the death of Tamerlane and her encounter with Verna, a mysterious figure tied to the Usher family. Seeking answers, she returns to her childhood home, where she confronts Verna. It becomes clear that there is an agreement, an enigmatic pact, between Madeline, Roderick, and Verna that involves death. Madeline, burdened by the contract, tries to break its terms by killing Verna. But Verna proves to be resilient, seemingly immune to death. The true meaning of the agreement and its implications remain shrouded, waiting to be discovered in the final episode.Parallel to these events, Frederick, another Usher sibling, strives to secure his position as the next CEO of Fortunato Pharmaceuticals. He subjects his wife, Morelle, to torture and isolation, seeking revenge for perceived deceits. However, his sadistic actions arouse even Verna's disapproval. As Frederick prepares to witness the demolition of Prospero's lab, he unknowingly consumes a paralyzer drug, whispered into his ear by Verna. As he falls victim to the drug's effects, Verna taunts him before impersonating Frederick's voice and giving the order for the building's destruction. A swinging beam descends, gruesomely splitting Frederick's body in half, marking his demise.Despite the deaths of all the Usher children, the Usher dynasty persists. Lenore, Roderick's granddaughter and the last surviving Usher, is still alive. However, there are unsettling hints that Lenore may have undergone transformative experiments orchestrated by Madeline involving artificial intelligence, blurring the line between humanity and something altogether different.As this episode concludes, the true extent of the Usher family's secrets and the repercussions of their dark connections become ever more apparent. The final installment promises to unveil the remaining mysteries and determine the ultimate fate of the Usher legacy.