Toni Collette and Gabriel Byrne and Anne Dowd are the adult stars, with Alex Wolff and Milly Shapiro as the kids menaced by um, bad genes? Grandma?

A24 is a studioA24 is a studio that releases challenging films, even the ones you might not “get” or simply don’t quite work. “Lady Bird” and “The Florida Project” were theirs. “Room,” “Ex Machina.” Their horror takes are no different.

“Hereditary” opens June 8.