Erica Marsden's son, an artist, has been imprisoned for homicidal negligence. In a state of grief, Erica cuts off all ties to family and friends, and retreats to a quiet hamlet on the southeast coast near the prison where he is serving his sentence.

There, in a rundown shack, she obsesses over creating a labyrinth by the ocean. To build it - to find a way out of her quandary - Erica will need the help of strangers. And that will require her to trust, and to reckon with her past.