Sweetheart - Chelsea Cain The continuing saga of Susan (the reporter), Archie (the cop) and Gretchen (the serial killer). I admit, this series and its characters have me hooked. Although the plot line is a little redundant the characters have me captivated. I will definitely read the next installment to find out what happens to them in their lives (and OF COURSE) to find out what color Susan's hair will be.