The Closer 'un 5 sezonu TNT (US) 'da lundi 8 juin 2009 'dan lundi 21 décembre 2009'a kadar yayınlandı. 15 bölümlerinden oluşuyor, ilkinin adı "Products of Discovery" ve sonuncusunun adı "Dead Man's Hand".
Deputy Police Chief Brenda Leigh Johnson is a police detective who transfers from Atlanta to Los Angeles to head up a special unit of the LAPD that handles sensitive, high-profile murder cases. Despite a tendency to step on people's toes, Johnson manages to convert even her strongest adversaries with her unique ability to get to the truth.