Kenzou Tenma, a Japanese brain surgeon in Germany, finds his life in utter turmoil after getting involved with a psychopath that was once a former patient.

Ishihara Toru is an everyday guy with an on-and-off girlfriend and a position working for a train buff. Things become complicated when a ghostly vehicle dubbed the X Train begins to ride the rails, destroying everything in its path. Somehow, it seems that Toru is connected with the X Train by a strange power, which draws the attention of some very dangerous and power hungry people who would wield it for their own...