When does Department Q return?

Department Q is an upcoming American crime thriller television series created by Scott Frank, based on the book series of the same name by Jussi Adler-Olsen. Matthew Goode, Chloe Pirrie, Alexej Manvelov, Leah Byrne, Kelly Macdonald, Mark Bonnar, Shirley Henderson, Jamie Sives and Kate Dickie were cast in the series.
A former top-rated detective (Goode) in Edinburgh is assigned to a new cold case. He is wracked with guilt following the attack that left a fellow policeman dead and his partner paralysed.