When a young nun at a cloistered abbey in Romania takes her own life, a priest with a haunted past and a novitiate on the threshold of her final vows are sent by the Vatican to investigate. Together they uncover the order’s unholy secret. Risking not only their lives but their faith and their very souls, they confront a malevolent force in the form of the same demonic nun that first terrorized audiences in “The Conjuring 2,” as the abbey becomes a horrific battleground between the living and the damned.

In 1930, in Belgium, Gabrielle van der Mal is the stubborn daughter of the prominent surgeon Dr. Hubert van der Mal that decides to leave her the upper-class family to enter to a convent, expecting to work as nun in Congo with tropical diseases. She says good-bye to her sisters Louise and Marie; to her brother Pierre; and to her beloved father, and subjects herself to the stringent rules of the retrograde institution, including interior silent and excessive humbleness and humiliation. After a long period working in a mental institution, Gaby is finally assigned to go to Congo, where she works with the Atheist and cynical, but brilliant, Dr. Fortunati. Sister Luke proves to be very efficient nurse and assistant, and Dr. Fortunati miraculous heals her tuberculosis. Years later, she is ordered to return to Belgium and when her motherland is invaded by the Germans, she learns that her beloved father was murdered by the enemy while he was helping wounded members of the resistance. Sister ... Written by Claudio Carvalho, Rio de Janeiro, Brazil

A damaged young woman is looking forward to moving to a beautiful new home, but the spirit of a deranged nun wants her to stay right where she is.