Alright, so sometimes Riverdale does genre parody, in that sort of sly, if-you-get-it-you-get-it kind of way. And sometimes, it just lifts every cliche from the genre handbook and crams it into one episode and dumps it on your lap. This week’s outing. The Red Dahlia, was the latter. And this time, Riverdale is going balls-to-the-wall with its noir.