Season 4 Episode 3 episode 3

Castle Season 4 Episode 3 "Head Case" Promo

Castle Season 4 Episode 3 "Head Case" Promo

Check out the promo for Castle season 4 episode 3, "Head Case"!

In this episode Castle & Beckett arrive at the crime scene and they discover that it lacks something - the victim! The investigation leads to the cutting-edge world of life-extension science, a cunning high-tech researcher, and a sleazy porn mogul who invested in a modern-day "fountain of youth." Meanwhile, Alexis finds out whether she got into Stanford.