1890 Dakota Territory, the pioneer settlement of Eden is a righteous town full of righteous people...and two young women in love with one another who harbor a dark secret. Margaret Hatch is a good woman. She has a husband, a homestead, a baby, and always heeds her preacher. But when things in Eden begin to go awry she can't help but feel guilty. Guilty for that night five years ago. Guilty for kissing her best friend. Guilty for wanting more. Emma Johansson is not a good woman. She is loose, unmarried, and employed. Three things a woman should not be. She also happens to be in love with her best friend Margaret, a fact both of them have kept buried all of their lives. Now, the two women must reconcile their hidden history with the terror that has taken hold of Eden, a malevolent force keen to expose their truths to the world. Emma and Margaret must face what they unleashed five years ago before it takes both of them, and their secret, to the grave.