A young woman mysteriously inherits the house across the street from a man unknown to her who died twenty years prior. When she moves in, she discovers a sinister labyrinth inside the walls and becomes trapped in its ever-changing corridors.
Several notables from the Chamonix region are found murdered in their homes. To move forward with investigation, police captain Thomas Delhaye decides to release Juliette Hémon from prison, imprisoned for a strangely similar case.
