Another volume, another blood bath. This time it does not involve a high school. Humans are onto the parasyte infiltration of municipal government, and they plan a raid to determine just who is infected. For some reason they think it is a good idea to bring in a necrophiliac serial killer with a talent for spotting aliens to help. But you just can't trust those necrophiliac serial killers.
We also learn that not all parasytes are created equal. Some are tougher than others, especially those who look like a G.I. Joe. They can absorb bullets and spit them back at you.
In the concluding portions of this volume, at last love comes to Shinichi. And Migi, the parasyte inhabiting his right hand, has been sleeping more than usual but wakes up to work out a spectacular escape for the climax.