Dakota Johnson and Brant Daugherty on the Set of "Fifty Shades Darker"

Dakota Johnson and Brant Daugherty are spotted on the set of “Fifty Shades Darker” in Vancouver, Canada. Plain Jane meets Sexy-Dark Something-or-Other. Are we right? Did we guess the plot? Because the costumes are telling us a story.   We’re sure those of you who want to publicly admit to having read the books will …