Complete story — includes the ending
Castle and Beckett investigate a crime scene that involves a large pool of blood, but no victim, where their desperate search for the body ends at a cryonics company. The victim, a biology professor at Hudson and a friend of the company's CEO, had a cryogenics contract, triggered by an alarm that goes off when the victim's heart stops beating. Taking the bullet out would 'kill' the corpse, so the severed head remains frozen at the cryogenics laboratory. When Ryan and Esposito find needles with the victim's brain matter on it, the case takes a turn when Lanie discovers that someone was doing procedures to the victim's head, which is subsequently stolen during a break-in at the lab. Alexis receives news about Stanford.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Castle season 4. HTML formatting and reference markers removed. · Content license