Mouse starts with the arrest of the notorious serial killer known as the Head Hunter 25 years ago. He is sentenced to death and he is put at a correctional facility where he serves his time as a death-row convict.Meanwhile, at a legislative meeting, Dr Daniel Lee, a geneticist, claims that he has devised a method to find out the psychopathic gene in a foetus. He says they can abort pregnancies with the psychopath gene, so the world can be a safer place. He claims the test has a 99% success rate because the psychopath gene and genius gene are identical and there is no way to find out if the child will turn out to be a psychopath or a genius (1% chance of it being a genius). The Government panel decides against passing the bill (which allows aborting pregnancies with the psychopath gene) because they do not want to kill a foetus that may turn out to be a genius.Mouse Season 1 Download.
25 years later, the nation is terrorised by another set of gruesome serial killings. Jung Ba-reum (Lee Seung-Gi) is a righteous and compassionate new recruit at the Police Station. After his friend is brutally attacked, he decides to involve himself in the case. They find that the case may be linked to the recent serial killings. The investigation is lead by Detective Go Mu Chi who has lost his family to the Head Hunter twenty-five years ago. Mu Chi’s goal is to go to prison after killing a serial killer. He declares that once he is in prison, he will kill the Head Hunter who is serving the time there.
On the side, the viewer is introduced to Jae-Hoon, a child with the psychopath gene. True to Daniel Lee’s studies, his murder instincts are awake and killing is like second nature to him. Jae-Hoon’s life as a child is shown throughout the series which leads one to keep guessing as to whom Jae Hoon grew up to be.