
- Why did Sam let Dean get turned?
- Who is the vampire Alpha, and what is his plan?
- What was Dean's weird vamp dream all about? And what happened in Aurora, IL?

- The vampires are building an army -- and they're not afraid of hunters anymore.
- Dean is more suspicious of Sam than ever.
- The Campbells have an old cure for vampirism, if the newly turned vamp does not drink human blood

- At the start of the episode, Kristen shows a fake ID at the bar, and it's that of an Asian girl named Emily Fang from Limestone, IL (Limestone is a real, very small town -- about 1500 pop. -- west of Kanakakee).

- Title: References the vampire-themed Twilight.
- Title: The term "twihard" refers to "diehard" fans of the Twilight series
- Title: Referencing the 2007 action-adventure movie Live Free or Die Hard.
Twilight allusions
- The young emo couple reciting teen-angst dialogue at the start of the episode are named Kristen and Robert, named after Twilight stars Kristen Stewart and Robert Pattinson.
- The dialouge in the beginning of the episode contains lines taken directly from Twilight.
- Kristen claims she's very clumsy when she gets a paper cut, and Bella Swan in Twilight is notoriously clumsy.
- In Kristen's room, Dean and Sam try both Lautner and Pattinson as her computer password.
- When Dean tries to say goodbye to Lisa, he realizes that he's being a lot like Pattinson's character Edward Cullen.


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When several people kill themselves under strange circumstances, Sam and Dean discover that they were driven insane by the Goddess of Truth, who forced them to tell the truth against their will. However, when the brothers track down the goddess, Veritas, she uses her powers on Dean.