protagonist Elena Gilbert (Nina Dobrev) as she falls in love with vampire Stefan Salvatore (Paul Wesley) and is drawn into the supernatural world as a result. As the series progresses, Elena finds herself drawn to Stefan's brother Damon Salvatore (Ian Somerhalder) resulting in a love triangle. As the narrative develops in the course of the series, the focal point shifts on the mysterious past of the town involving Elena's malevolent doppelgänger Katerina Petrova. Katerina was the love of both Damon and Stefan Salvatore many years ago. Her return, along with the family of Original Vampires, have all led to many plots against Elena and Mystic Falls.