"Provenance," the 19th episode of Supernatural 's first season, masterfully blends "monster-of-the-week" horror with crucial character development, focusing on a haunted portrait that forces Sam to confront his grief over Jessica. The episode, featuring fan-favorite Sarah Blake, sees the brothers destroying a haunted doll to break a cycle of killings committed by the spirit of a deceased child. Detailed analysis can be found on the Super-wiki . Provenance | Supernatural Wiki | Fandom