Quand Ellen, la matriarche de la famille Graham, meurt, sa fille revient vivre dans la maison avec sa famille. Ils vont alors découvrir le terrifiant secret de leur ancêtre...

After discovering an ancient book of the occult, a family activates a dangerous ritual forcing each of them to communicate with and fight a demonic force in their own unique way: to see it, hear it or speak to it.