Saishuu Chikan Densha  

The Molester 1, 最終痴漢電車

In crowded trains, strangers may feel uncomfortable being too close. However, for some individuals, proximity brings comfort. When an incompetent conductor observes the peculiar yet alluring practice of anonymous sex on trains, he seizes the chance to transform it into a lucrative enterprise. Each night following the last train's stop, he converts it into a mobile brothel. Prepare to board... the grime-filled train is about to arrive.