User Image - Blocked by "Display Image" Settings. Click to show. The series follows the life of Elena Gilbert , who falls for a century-old vampire named Stefan Salvatore. Their lives grow more and more complicated as Stefan's vicious brother Damon returns to town with a vendetta against his brother. Both brothers begin to show affection towards Elena, mainly because of her resemblance to their past love Katherine. It is revealed that Katherine is Elena's doppleganger, who eventually returns with plans against the trio.