Hereditary is a 2018 horror movie that follows the Graham family as they deal with grief and dark family secrets after the death of their grandmother. The story centers on Annie, played by Toni Collette, her husband Steve, son Peter, and daughter Charlie. What starts as a family mourning turns into a nightmare of strange events and possessions. The ending shocks many viewers, but it ties back to ancient demon worship hidden in the family’s past. For a detailed breakdown, check out this video from Heavy Spoilers at https://www.youtube.com/watch?v=Sl7K90Nc4RA.
The film opens with the grandmother’s funeral. Annie finds a strange sketchbook belonging to her mother, filled with creepy drawings of a girl who looks like Charlie. Soon after, Charlie dies in a tragic car accident caused by a nut allergy reaction. Peter blames himself, and Annie spirals into rage and paranoia. These events are no accident. The grandmother was part of a cult devoted to a demon king named Paimon. They chose the Graham family to host Paimon’s spirit because all the males in the line were failures, and Charlie was born a girl to serve as the vessel. More on this in the playlist explanation at https://www.youtube.com/playlist?list=PLdjK-hGLGLjTuCJI7Jkb0DyKT5vHB2z6C.
As the horror builds, Annie attends a support group where she meets Joan, who teaches her to communicate with the dead through a seance. This opens the door for Paimon to possess Peter. Annie cuts the cult connection by burning a necklace, but it’s too late. She confronts Peter, who is no longer himself, and in a brutal scene, she decapitates herself with piano wire. Peter, under Paimon’s control, jumps out a window and survives with his head twisted unnaturally. Cult members from the neighborhood carry his headless body to the attic, where they complete a ritual. They place Charlie’s head on Peter’s body and crown him as Paimon incarnate. The demon’s silhouette appears in the treehouse, sealing the family’s doom. This terrifying finale is unpacked in depth here: https://www.youtube.com/watch?v=OkE-21uJLZ4.
Director Ari Aster planned the ending to feel inevitable. Every symbol, like the triangle motifs and decapitations, points to Paimon’s lore from the Lesser Key of Solomon, a real occult text. Peter’s room becomes the ritual temple, with cult symbols painted everywhere. The grandmother’s will and the cult’s patience show years of grooming. Even Steve’s spontaneous combustion hints at supernatural forces at work. Fans debate if Annie was possessed earlier, but the seance marks the true turning point. Watch this clip for why it all connects logically: https://www.youtube.com/watch?v=0vIFJfLop5I.
The film’s power comes from blending real grief with supernatural terror. Annie’s breakdowns mirror actual parental loss, making the horror hit harder. Paimon’s rise isn’t random; it’s hereditary, passed down through the bloodline. The final shot of the demon watching over his new king leaves viewers chilled, realizing the cult won.
Sources
https://www.youtube.com/watch?v=Sl7K90Nc4RA
https://www.youtube.com/playlist?list=PLdjK-hGLGLjTuCJI7Jkb0DyKT5vHB2z6C
https://www.youtube.com/watch?v=OkE-21uJLZ4
https://www.youtube.com/watch?v=0vIFJfLop5I
https://www.youtube.com/watch?v=HltwQ6C8uQE
