After a road accident in Hungary, the American honeymooners Joan and Peter and the enigmatic Dr. Werdegast find refuge in the house of the famed architect Hjalmar Poelzig, who shares a dark past with the doctor.

After a massive sinkhole swallows a nearby town, a school bus filled with students is dropped deep underground. After the crash, the students realize the bus is hanging precariously against the side of the sinkhole, held in place by a broken pipe. Any sudden move could send the bus plummeting into the darkness below. Alone and with all the adults injured, the teens struggle for survival with the story taking on shades of Lord of the Flies. Their only hope is a small-town paramedic, who must overcome a tragic past to rescue the students.

Hannah's search for her son's body leads her to sleepy Billins, where her investigations uncover more than she expected and threaten to expose towns dark secrets....secrets that both the living and the dead will fight to protect.