The title is both playful and accurate: Richard Milford, called Rich, proves almost as difficult to kill as Rasputin, with whom he shares many unsavory characteristics. As for the wives, only one possesses a marriage certificate ... The novel opens with Rich’s funeral. The truth of who or what killed him is revealed with tantalizing slyness as Ms. Thompson-Spires shifts perspectives, lacing each monologue with mordant humor.