Ghost in the Shell

In the year 2029, the barriers of our world have been broken down by the net and by cybernetics, but this brings new vulnerability to humans in the form of brain-hacking. When a highly-wanted hacker known as "The Puppetmaster" begins involving them in politics, Section 9, a group of cybernetically enhanced cops, are called in to investigate and stop the Puppetmaster. The pursuit will call into question what makes a human and what is the Puppetmaster in a world where the distinction between human and machine is increasingly blurry.

Synopsis from Anime News Network