Hereditary is a 2018 American psychological horror film written and directed by Ari Aster in his feature directorial debut. It stars Toni Collette, Alex Wolff, Milly Shapiro and Gabriel Byrne as the members of a family haunted by a mysterious presence after the death of their secretive grandmother.

Plot

Miniature artist Annie Graham lives with her psychiatrist husband Steve, their 16-year-old son Peter, and their 13-year-old daughter Charlie. The family attends the funeral of Annie's cold distant mother, Ellen. Annie is surprised at the number of people in attendance. Annie attends a bereavement support group, revealing she and her mother had a fraught relationship until Charlie was born when Ellen became a significant figure in raising her. Meanwhile, Steve receives a phone call telling him that unknown perpetrators desecrated Ellen's grave, but does not reveal this to Annie.