Reiko tells Shinichi some things that she has discovered about Parasytes and Humans, then gives her baby to Shinichi. This causes Shinichi to have flashbacks to his parents. He then meets another man who is able to sense things.

The police start their operation to take out Hirokawa and the remaining parasytes. Plans go awry when the Parasytes try to fight back. Things get more gruesome when Gotou appears.