When Klaus Mikaelson and his soulmate wife, Y/N—a powerful tribrid he found and married over five hundred years ago—arrive in Mystic Falls to investigate rumors of a Petrova doppelgänger, they find themselves caught in the town’s supernatural chaos. As old enemies, new alliances, and dangerous secrets emerge, Y/N must navigate life in Mystic Falls while dealing with one persistent annoyance: Caroline Forbes and her complicated connection to her husband.