A headless corpse of a paramedic walks out of the hospital morgue triggering a manhunt for a man with unimaginable regenerative powers, that come at a terrible cost. The case makes Scully realize in shock that she may not be well.
After an ambulance accident leaves Pittsburgh, PA's EMT of the Year Leonard Betts without a head, and what's left of his body seems to walk right out of the morgue, Mulder and Scully investigate. They find what may be evidence of evolution from man to something... cancerous.—EJS