Castle and Beckett have a crime case sans victim. And that might be a tricky one. Then it’s time to go high-tech with science! Well, porny-science. Which is apparently a thing. In less bloody news, did Alexis get into Stanford?!

Castle Season 4 Episode Guide

Castle Season 4 Episode 3 – Castle Head Case Summary – 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 high-tech researcher (guest star William Atherton), and a sleazy porn mogul who invested in a modern-day “fountain of youth.” Meanwhile, Alexis finds out whether she got into Stanford, on “Castle,” MONDAY, OCTOBER 3 (10:01-11:00 p.m., ET), on the ABC. Castle stars Stana Katic and Nathan Fillion

Castle Season 4 Pictures / Photos : ABC/ADAM TAYLOR

Castle Season 4 Episode 3 Head Case