Elena Gilbert works as a psychiatrist in the psychiatric hospital of Mystic Falls. One day, a new patient arrives who pretends to be a cursed vampire: Damon Salvatore, who says he cannot use all of his vampire abilities which puts him in a not so favorable position. Elena doesn't know why, but she slowly stars to believe in his story. Will she be able to save him?

It's a Thursday morning, Will Graham goes to his work as every day. He is a Special Agent for the FBI. But on this day, he learns that he will have to solve every crime from now on with someone, "to control the potential madness", as his boss Jack Crawford says. It turns out that Will's new co-worker is a certain British detective : Sherlock Holmes...