Shared trauma can create unbreakable bonds. This is what the series shows. Hal & Harper, a fiction of marked character indie –presented at the Sundance Film Festival– follows a brother and sister who have established a relationship of total dependency following the death of their mother when they were children. Hal & Harper, which premieres this Monday on Movistar Plus+, is created, starring, and directed by Cooper Raiff and won an award at the recent Series Mania festival, which recognized Lili Reinhart as Best Actress.