I am not sure what it says about myself that I loved and was rooting for a serial killer.  But Lottie Jones at age 75 just wants to be able to enjoy church bingo with her friends and forget her past, which so far she has hidden well.  When a journalist threatens to reveal her true name and her past she has no choice but to return to her old ways of solving problems (think Dexter ) but instead of easily taking care of just one person things soon escalate.  I enjoyed every word of this story about an elderly, supposedly retired, serial killer who tries to figure out how to get away with murder despite her age, her frailty, and her inexperience with modern technology.