After a mixed start to the season, this week’s episode of CBS‘sWatson delivered a compelling hour, largely thanks to long-awaited insight into one of its most intriguing characters, Dr. Ingrid Derian (Eve Harlow). Episode 7, “Teeth Marks,” is a major turning point forher journey, setting up a storyline that will have significant implications for Watson and his team. From the start of the series, Derian has been an enigmatic presence, balancing intelligence and skill with a deeply guarded, almost unsettling nature, seemingly uninterested in connecting with anyone around her.