Boston Detective D. D. Warren cannot remember how she was attacked while walking the murder scene after dark. She is later told she managed to discharge her weapon three times. All she knows is that she is seriously injured, unable to move her left arm, unable to return to work. Six weeks later, a second woman is discovered murdered in her own bed. The only person who may have seen the killer is Detective D. D. Warren, who still cannot recall a single detail from the night that may have cost her everything. D.D. may not be back on the job, but she is back on the hunt. Because the Rose Killer is not just targeting lone women, he is targeting D.D.