Astrid never wanted to return to her aunt's house after a tragedy struck when she was a kid. Her sister Nina was found by Astrid after she drowned in a reflection pool at a neighbor's house. Many years later, Astrid is asked by her aunt Maude to come back because she found some mysterious letters that she wants her to read. When Astrid walks in the door, Maude is unconscious, and it looks like someone was looking for something.