When her mom inherits an old, crumbling mansion, Seda’s almost excited to spend the summer there. The grounds are beautiful and it’s fun to explore the sprawling house with its creepy rooms and secret passages. Except now her mom wants to renovate, rather than sell the estate—which means they're not going back to the city…or Seda's friends and school.
As the days grow shorter, Seda is filled with dread. They’re about to be cut off from the outside world, and she’s not sure she can handle the solitude or the darkness it brings out in her.
Then a group of teens get stranded near the mansion during a blizzard. Seda has no choice but to offer them shelter, even though she knows danger lurks in the dilapidated mansion—and in herself. And as the snow continues to fall, what Seda fears most is about to become her reality…