: Gloria discovers through a vision that Elena is the one wearing the necklace. She realizes Elena—the doppelgänger Klaus needs—is still alive, but before she can tell Klaus, Katherine kills her to protect the secret.
: The episode ends with Klaus bringing Stefan back to Mystic Falls in the back of a truck, determined to find out what Stefan is still "holding onto" from his old life. Critical Reception & Key Quotes
For a deeper look at the tension and key scenes from this episode, you can watch this official webclip: The Vampire Diaries 3x04 "Disturbing Behavior" Webclip Cristina Alexandra YouTube• Oct 4, 2011
Reviews of the episode highlight a mix of character dynamics and pacing. While some critics noted and "characters stuck in the same locations", others praised the dynamic between the Originals .
: Gloria discovers through a vision that Elena is the one wearing the necklace. She realizes Elena—the doppelgänger Klaus needs—is still alive, but before she can tell Klaus, Katherine kills her to protect the secret.
: The episode ends with Klaus bringing Stefan back to Mystic Falls in the back of a truck, determined to find out what Stefan is still "holding onto" from his old life. Critical Reception & Key Quotes
For a deeper look at the tension and key scenes from this episode, you can watch this official webclip: The Vampire Diaries 3x04 "Disturbing Behavior" Webclip Cristina Alexandra YouTube• Oct 4, 2011
Reviews of the episode highlight a mix of character dynamics and pacing. While some critics noted and "characters stuck in the same locations", others praised the dynamic between the Originals .