The episode focuses heavily on Elena's inability to handle her sadness, which she channels into a murderous rage toward Katherine.

Elena Gilbert, still struggling with her humanity and grief over Jeremy’s death, seeks revenge against Katherine Pierce. Key Plot Developments

Silas uses his psychic powers to torment the group, specifically making Caroline hallucinate that she is cutting herself. Bonnie eventually uses Expression to turn Silas’s body into stone, though he remains a threat if he receives even a drop of blood. Character Arcs