Please Refrain From Abstinence Inside the Train

A man is falsely accused of molestation by two girls on a train, causing him to miss the last train home. After a long day of work, he boards a mysterious train that arrives at the platform. Inside, he encounters the same girls who framed him.

A strange announcement declares that no one can leave until a certain activity is completed. The man finds himself face to face with one of the girls, who suggests that the only way to get off the train is to engage in sexual acts with him. As the train continues its journey, the passengers are compelled to participate in the reproduction ritual.