It's interesting, but honestly... it's missing some real psychological depth, something much more elaborate. Right now, I can see the husband as crazy and obsessive, but not as a true strategist, the kind of person who would make the evidence hard to find, for example, or create doubt about his own murder. In fact, everything is handed to the FL on a silver platter. That's a shame, but it's still an enjoyable read.
I hope they've got health insurance, they're going to need a doctor after last night (/TДT)/