Spare Man

I've read and enjoyed all of Kowal's books. The worldbuilding is considered & smart, and her characters are always horny for each other (often, newlyweds).

Didn't expect a mystery, but this was fun. Initially annoyed by all the cocktail recipes, but she persuaded me to seek out complex flavors of the non-alcoholic variety (my preference). I always learn something from her, including a 5-senses grounding technique.

Witty low stakes riff, not so noir - the vibe is more 5th Element romp given the cruise ship setting, and the mystery bends to suit - but true to the original in prominent stiff drinks, and comfortably egalitarian in gender roles.