‘Good Behavior’: Lady Mary Gets High

Michelle Dockery — aka Lady Mary Crawley in “Downton Abbey” — has opted for a completely different kind of role in “Good Behavior,” premiering Tuesday on TNT. In the new series, Dockery is Letty Raines, an alcoholic, drug-taking hellion who has hit rock bottom in North Carolina. “Good Behavior” is based on novella series by Blake Crouch.