Midnight Eye Goku

A private eye named Goku investigates a number of suicides of police officers. When he encounters the woman responsible for those suicides, he is caught by her supernatural powers and the only way to survive was to stab his own eye out. Now replaced with a cybernetic implant that allows him to access nearly every computer on earth and equipped with a powerful rod that can extend to quite a length, he resumes the investigation only to find out it falls deeper into the net of underground rulers.

Synopsis from Anime News Network