Number 9 in the DI Tom Janssen series, “To Die For,” is the most deeply rewarding since the fifth instalment, Hear No Evil. This time the focus for dependable homicide copper Janssen, together with his ensemble team, is the murder of an innocuous Norfolk semi recluse. Who would possibly wish to harm such a harmless man? In the author’s capable hands, the plot plummets into bafflement and out into twist after twist of satisfying conclusions. The entertaining storyline notwithstanding, the real pleasure is the ongoing interplay of the homicide squad’s diverse members. As with the previous eight books, Norfolk is a subtly portrayed additional character. Find a comfy chair and sink into To Die For, emerging breathless at the end.