Tenma is the main character in the anime "Monster". A young japanese man working as a surgeon in Germany. Married to a beautiful wife with a brilliant career. Unfortunately, this doesn't last for long. The director and soon father-in-law orders a rich man to be operated. At the same time an ordinary child must be operated, too. In this hospital money and power are considered higher than the life of people. Tenma shows humanity and saves the child. This act turns his life upside down. He loses everything. But the worst is yet to come. The director and part of the hospital's emplyees are killed. Tenma is under suspiction. He's the only one who has a motive. He starts running. Years after the incident, he finds out that the child he saved is a serial killer. Merciless. cruel and treacherous. Tenma knows that the child must be stopped at all cost. A battle starts between a wandering doctor and an intelligent psychopath.