There are moments — comments from the retirement home heroes, or the interaction between the romantically attracted investigators — when this book is spot on. Too funny for words. But as a puzzle mystery this tale fails all the tests. There are plenty of twists and turns, just when you think it’s all resolved there’s another turn and then another. The ultimate culprits are least suspected, which is always good, but the motives are related to secrets that are not revealed until way too late. It’s as if the murders happened in another book and the reader only hears about it second hand. Mystery readers long for that ah ha moment when they realize the clue was right in front of them all along not when the writer pulls out back story in the final scene that was never hinted at before. And the humor is Sooo British like a confession during a chess match when both players are more interested in the game moves than reacting to life and death revelations.