In four days, someone is going to kill me. . . . Detective D. D. Warren is hard to surprise. But a lone woman outside D.D. s latest crime scene shocks her with a remarkable proposition: Charlene Rosalind Carter Grant believes that she will be murdered in four days. And she wants Boston s top detective to handle her death investigation. It will be up close and personal. No evidence of forced entry, no sign of struggle. Charlie tells a chilling story: Each year at 8:00 p. m. on January 21, a woman has died. The victims have been childhood best friends from a small town in New Hampshire; the motive remains unknown. Now only one friend, Charlie, remains to count down her final hours. But as D.D. quickly learns, Charlie Grant doesn t plan on going down without a fight. By her own admission, the girl can outshoot, outfight, and outrun anyone in Boston, which begs the question: Is Charlie the next victim, or the perfect perpetrator? As D.D. tracks a vigilante gunman who is killing pedophiles in Boston, she must also delve into the murders of Charlie s friends, racing to find answers before the next gruesome January 21 anniversary. Is Charlie truly in danger, or is she hiding a terrifying secret that may turn out to be the biggest threat of all? In four days, someone is going to kill me. But he s gotta catch me first."