Alicia Silverstone might be best-known for '90s romps like Clueless, Excess Baggage, and Blast from the Past. But the Californian actress who defined the era's idea of cool has been exploring darker realms in cinema, appearing in Yorgos Lanthimos's twisted thriller The Killing of a Sacred Deer; Severin Fiala and Veronika Franz's freaky follow-up to Goodnight Mommy, The Lodge; and now Jennifer Reeder's blood-dripping, coming-of-age monster movie, Perpetrator. Pulling in polarizing reviews on its film festival run, Perpetrator centers on a teen girl named Jonny (Kiah McKirnan), who on her 18th birthday inherits a strange new power that pushes her to better understand the world around her through truly radical empathy. Silverstone stars as Jonny's hard-as-nails and hot-as-hell mentor, Hildie. Together, they will forge a path of female bonding…while investigating a spade of missing person cases afflicting the local high school. In a paired interview with Mas