Episode 1

A chilling phone call during Astrid's radio show stirs up memories about her sister's disappearance and spurs her to investigate what really happened.

Episode 2

Astrid returns to her childhood home to look for clues. Ida's relationship with Jakob unfolds and his fascination with a mysterious book takes root.

Episode 3

Jakob leads Ida, Amelia and Falke to the island for the equinox. After learning more about the strange symbol, Astrid questions a former teacher.

Episode 4

The pieces begin to fall into place for Astrid with help from Ida's old friend, but the visions that plagued her as a child shake her hold on reality.

Episode 5

A return address yields more clues, but Astrid's relentless search for answers causes concern. Ida feels lost and alone after the events on the island.

Episode 6

Astrid confronts her mother as she closes in on the truth. Anger, accusations and revelations mar Ida's long-awaited graduation day.