Season 4 Episode 6 episode 6

Castle Season 4 Episode 6 “Demons” Promo #2

Castle Season 4 Episode 6 “Demons” Promo #2

Here's the second promo for Castle season 4 episode 6 “Demons”, this one's from CTV network. Castle and Beckett are chasing a ghostbuster killer. What do you think guys demons or a real life baddie?