Kalla spår was released in the year 2003。Kalla spår is also called as "Cold Case", Victimes du passé, Todistettavasti syyllinen, Law & Order: Cold Case Squad, Döglött akták, Cold case - affaires classées, Cold Case - Kein Opfer ist je vergessen, Cold Case, Caso abierto。

Lilly Rush is a Philadelphia police detective working for the department's homicide squad and being assinged 'cold cases'; crimes that have been commited many years ago and have not been solved. Lilly must try to re-think the crime scenes and interview other people involved with the victims to find a link to solving the cases.

Kalla spår actors and actresses include Alicia Ziegler, Bahni Turpin, Bonnie Root, Bree Turner, Daniel Pino, Josh Hopkins, Justin Chambers, Kevin McCorkle, Marisol Nichols, Melinda Page Hamilton, Meredith Baxter, Nestor Carbonell, Nicki Aycox, Robin Weigert, Silas Weir Mitchell, Tahmus Rounds, Thom Barry, Tracie Thoms。