This night is like all the others for Mady, student by day, locksmith by night. But Claire, the enigmatic young girl he helps out that night, is not who she claims to be. Mady has only one night to prove his innocence in a city in turmoil.

1956 in France, a priest is horribly murdered. An evil is spreading. Once again, Sister Irene comes face-to-face with Valak, the demon nun.

When mysterious events change the course of an immigrant ship headed for New York in 1899, a mind-bending riddle unfolds for its bewildered passengers.