"You loved it." What does it mean to be a good man? Is it the ability to uphold one's vows--constancy, fidelity, honesty--or is it that one's actions echo forever in a relationship? We're given a prism in this week's episode of Mad Men ("Mystery Date"), written by Victor Levin and Matthew Weiner and directed by Matt Shakman, through which to view both Don Draper (Jon Hamm) and Greg Harris (Sam Page), as well as the notion of the pursuit, which looms large over the action, casting a dark spell from which several characters find they cannot wake. It's telling that Michael Ginsburg (Ben Feldman) offers a disturbing fairy tale to the pitch clients rather than the agreed-upon campaign that he had already discussed with Don, putting everyone on the spot. He offers up a narrative that's certainly not in line with the Disney version of Cinderella, but casts the heroine as the prey of a deranged man, who pursues her down the darkened alleys and c