Katerina is a vampire living in New York City and she's dating and in love with Alec Lightwood. Katerina is the most powerful vampire in New York City and is highly respected, but often clashes with the witches of New York. A powerful group of witches out for revenge on Kat turn her whole world upside down as she ends up in the 1994 prison world with a sociopath named Kai Parker, who proves to be more than the monster. When she finally gets out.. who's side will Kat choose?