My review -
DCI Morton and his team are looking into the death of a man who lived on a narrowboat. His girlfriend, Faye, has just come out of prison, and when he goes missing after an evening with friends, and is later found dead, she and the guests are suspects as they were the last to see him alive. Rafferty, new to the team, knows the girl from years ago, which adds to the intrigue.
The arguments for guilt or innocence in each case are compelling and contradictory and it’s a really tangled web. It’s an exciting read, especially the culmination. This is one of a series but I’ve found they each read well as a stand-alone.