A new romance between two college students derails when a sadist attacks them during a nighttime walk by the railroad tracks; only one of them lives and she turns out to be the sole survivor of a serial murderer known as the Railroad Killer.

Gary Heidnick, who calls runs a church out of his house and calls himself "The Bishop," abducts a woman and holds her captive. Soon, he imprisons six women in his basement and tortures them. As captives begin to die, Josefina Rivera knows her only chance of survival is to escape.