The Michishio Special Express is not the luxury voyage it seems, but a sinister hunting ground where the crew prey on their passengers. While a doctor is subjected to sadistic experiments, a naive idol named Ringo believes she has found a genuine friend in the conductor, Mr. Kaidoh. However, Kaidoh's kindness is a calculated facade, leading to a brutal betrayal as he lures Ringo into a private compartment to satisfy his own dark desires.
Railway investigator Shoko Oogimachi boards the special train to probe rumors of disappearing women, only to discover that conductor Seiji Kaidoh uses the luxury line as a front for a sinister trafficking ring. As Kaidoh targets and breaks the will of innocent passengers, Shoko finds herself captured and subjected to the same depraved "services" she intended to investigate, eventually succumbing to the conductor's cruel manipulations.