That is the plotline of Sauron (Charlie Vickers) transforming from Halbrand into Annatar to fool Celebrimbor (Charles Edwards) even after Galadriel (Morfydd Clark) told him not to trust Halbrand.
In short, Celebrimbor is the elf responsible for forging the Rings of Power alongside Sauron. However, like many of Tolkien’s characters, Celebrimbor has a complex history and lineage in The ...