See the previous season review for an outline of "Da Vinci's Inquest." In fact this is enough of a continuation of the previous season that I'm not sure I have much to add. Da Vinci is an alcoholic, and a bit of an asshole - but he never comes to work drunk, and ironically, being an asshole makes him better at his job. This season is often quite dark - although as I write that, I realize the show is about a coroner. He's only involved if people are dead, and usually in an unhappy way. So I suspect the first season was equally dark, but I may not have noticed because I was so pleased to find a really well done TV series.