No one knows exactly why, but someone has to step in and solve the case. Only two come to mind: Detectives Turner Hahn and Frank Morales. Some cases are just too hard to crack; there are criminals who are too smart to track down and apprehend.
It's exactly these cases that the South Side Precinct assigns Turner and Frank. One is a certified genius; the other looks like a movie matinee idol from the 1930s. Both have a dogged determination to work a homicide case to its bitter end.
Welcome to the crime world of Detectives Turner Hahn and Frank Morales.