Something peculiar happens, while a train exhibition is attended by a youthful mom with her children. The monumental Runaway Express starts going with her children on board! Before it starts to speed away, with no one to help, the frightened mom jumps on the train. While on board, she finds that it's occupied by unexpected travelers - ghosts of those who died during those 50 years on board the train was operating between Istanbul and Paris.
Every individual, every death, every ghost holds some mystery which has not yet been inquired. Now, the train is ruled by these souls that are haunted and it is no longer appropriate for the living. The young mother discovers that bring some resolution to these souls that are lost and the only way to save her kids will be to investigate the haunted past.
Can it break the hex? Will uncovering each puzzle free every soul? Why do the passengers fear the masked Engineer? Unveil the puzzles to learn the best way to get the better of him, but beware, doing so comes at a price.