a/u elena has a twin sister katherine pierce both girls are vampires they were both hurt and the doctor gave them both vampire blood to heal then there parents car went off the wickery bridge the girls are trying to cope with the new changes in there lives there was a doppelganger in 1864 her name was cece what happens when she turns up the same time as the originals jenna who is also a boyfriend lives in the house with the girls with her husband alaric