The Alice Killings

Remain, to this day, one of the strangest and unsolvable serial killings in Japan. From 1999 - 2005, a series of five killings took place. The five killings might have been completely different, if not for the "calling card" that the killer left at each scene. He would leave a playing card ( it varied from killing to killing ) at each scene, in an obvious location, that had "Alice" written on it in the victim's blood.

On April 30, 2008, a producer known as Yugami - P uploaded his first song to nicovideo, called Hitobashira Arisu ( translated as Alice of Human Sacrifice). This song is believed to be based off of the Alice Killings. It tells the story of a little dream who lures people into this world, and then goes on to tell the story of each "Alice."