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- What exactly are the hell hounds, and is there any way to escape them?
- Was Dean tempted to truly make the deal to trade his soul for John's?
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- The crossroads demon seals a deal with a kiss.
- When someone makes a crossroads deal, he or she is ripped apart by hell hounds at the end of the deal term.
- Hell hounds are invisible except to those they are after.
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- The opening of the episode is a recreation of actual accounts of the death of Blues legend Robert Johnson. The plot of the episode is based on these accounts as well as Johnson's music.
- If the demon took the lives of people who made a deal with them for ten years, why did Robert Johnson die eight years later and not ten as it was supposed to be?
![Sympathy For The Devil - Supernatural Wiki Sympathy For The Devil - Supernatural Wiki](http://supernatural-fan-wiki.com/image/1/JYDvmOXu-hs1t3iEwPuU8w15953/GW261H29-1.jpeg)
- Little Walter - "Key to the Highway"
- Robert Johnson - "Crossroad Blues"
- Robert Johnson - "Hell Hound on my Trail"
- Son House - "Downhearted Blues"
- Brian Tichy - "Chaos Surrounds You"
- Nazareth - "Hair of the Dog"
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- When Dean finds out about all the arrest warrants out for him, he says, "Dude, I'm like Dillinger or something." This is a reference to gangster John Dillinger of the Depression Era. A bank robber, he was considered a Robin Hood by some as anda new breed of criminalby others.
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In a small Oregon town, Sam is infected by a supernatural virus that sweeps friends and neighbors into a frenzy of violence.