First there was “Buffy the Vampire Slayer"; then its spin-off “Angel"; then the cult hit “Firefly"; and its follow-up film, “Serenity." They all had two things in common: their creator, Joss Whedon … and their surprising psychological depth.Revisit the worlds of Joss Whedon … with trained psychologists at your side. What are the psychological effects of constantly fighting for your life? Why is neuroscience the Whedonverse's most terrifying villain? How can watching Joss's shows he...