Castle, Beckett, and Lanie in Season 4, Episode 3: “Head Case”
Gunshots, a fleeing van, and a massive blood pool all point to murder, but when Castle and Beckett arrive at the crime scene, they discover that it lacks something — the victim! The investigation leads to the cutting-edge world of life-extension science, a cunning researcher of cryogenic freezing (guest star William Atherton), and a sleazy porn mogul (guest star Jordan Belfi) who invested in a modern-day "fountain of youth." Meanwhile, Alexis finds out if she got into Stanford.
Original Air Date: October 3, 2011, 10/9c