Ouija: Origin of Evil (2016)

In 1967 Los Angeles, a widow named Alice Zander works out of her suburban home as a fake spiritual medium, accompanied by her daughters, 15-year-old Paulina "Lina" and 9-year-old Doris. The family is reeling over the recent death of Roger, Alice's husband and the children's father. Alice incorporates a Ouija board into her readings and unknowingly contacts a spirit named Marcus that begins to possess Doris.

After Alice receives notice of foreclosure on their home, Doris contacts the board for help, believing she is communicating with her dead father. The spirit leads Doris to a secret compartment in the basement wall containing a pouch of cash. When she gives her mother the money, the family has a Ouija session. When the board answers a question only Roger would know the answer to, a thrilled Alice begins believing that they are in contact with him.

Soon, Doris becomes fully possessed by the spirit and throws tantrums when told she must go to school, since she wants to stay home with the Ouija board. Lina, disturbed by the changes in her sister, finds papers written by Doris in fluent Polish, a language she does not know, and brings them to Father Tom Hogan, her school principal. Troubled, Father Tom visits them for a Ouija session under the pretense of contacting his dead wife, Gloria. He later explains to them that Doris did not contact Gloria. Instead, for every question he asked, she read his thoughts and repeated the answers he was thinking in his mind. The pages are entries written by a Polish immigrant named Marcus, who was taken captive during World War II by a sadistic Nazi doctor who conducted experiments on him and other captives in the house's basement. These spirits have been watching the family since the day they moved in. When asked what the spirits want from them, Doris replies, "Voice."

Doris kills Lina's new boyfriend, Mikey, when he comes to visit. Father Tom, Alice, and Lina burn the Ouija board in the basement furnace (shortly afterward, they find it untouched on its table upstairs). Beside the furnace, Father Tom finds the secret room where the experiments were conducted, and is possessed by the spirits, only to be killed later by Doris. Alice is captured, while Roger's spirit carries an unconscious Lina to her bed. Recalling earlier when her doll's mouth was stitched shut by her father's spirit "to shut out the voices" for Doris, Lina realizes she must sew Doris' mouth shut to quiet the spirits' voices. She sews Doris' mouth shut, but kills Doris in the process.

Doris wakes up as a ghost and is happily reunited with her father. The spirits possess Lina, who stabs Alice, who tells Lina with her dying breaths that it was not Lina's fault, leaving Lina devastated and orphaned. Lina is admitted into a mental hospital for the murder of her mother and disappearance of her sister. Alone in her room, she creates a Ouija board on the floor with her own blood and tries to summon Doris, but summons an evil spirit in Doris' form instead.

In a post-credits scene, 46 years later, a now elderly and still institutionalized Lina receives a visit from someone claiming to be her niece, greeting them with a wide smile.