Unless you've been living under a rock (we're looking at you Patrick Star), you're probably familiar with Ari Aster's recent box office release, Midsommar. The film starred Jack Reynor and Florence Pugh as a couple who took a trip to Sweden to enjoy a midsummer festival that turns out far more sinister than ever imagined. But, Midsommar is only Aster's most recent contribution to the horror genre. Back in 2018, he made his directorial debut with Hereditary, which starred Toni Collette, Alex Wolff, Milly Shapiro, and Gabriel Byrne as a family plagued by a demon after the passing of their grandmother. If you haven't seen it yet, proceed carefully. Rolling Stone writer Peter Travers called it the scariest movie of the year.