Netflix is about to take a big swing at the messy detectives genre. Dept. Q, a stylish new drama from The Queen's Gambit writer-director Scott Frank, is going to hit a very familiar and very satisfying nerve for fans of Slow Horses when it debuts on Netflix on May 29. The setup is similar: In this case, a brilliant but deeply damaged cop, DCI Carl Morck (played by Matthew Goode of The Crown and Downton Abbey fame), is sidelined after a career-sh…