Pauline Quirke stars in "Missing" as charismatic detective DS "MJ" Croft, who runs a busy, but under resourced, Missing Persons Unit. Each of these ten new episodes tackles a very different missing person case which MJ and her team must try and solve. They are in a race against time, since each case often involves people at risk, either from themselves or others. The process of investigation is a key element in their journey to find the missing person and also provides dramatic impetus for the viewer.This includes MJ's psychological profiling of the missing person and also the team's tracking and tracing, which requires the use of all manner of modern technology as well as old fashioned police legwork. Whether it is thirty minutes, or thirty years, when someone goes missing, lives are irrevocably changed. Those left behind are plunged into a sense of limbo: not knowing why their loved one has left and worse still, if their loved one is still alive.