The Sunday night routine can be rough. But once you’ve gotten over the fact that when you wake up it’ll be Monday again, turn on Showtime and tune into its new series “Black Monday.” Though you may not understand all the decade specific references, you don’t have to be Gen X to appreciate its smart humor and frat boy buffoonery, characteristic of executive producers Seth Rogen and Evan Goldberg.

Mo Monroe is the role Don Cheadle plays best. Some may even liken “Black Monday’s” Monroe to Marty Kaan, the sarcastic corporate America bigwig Cheadle played in “House of Lies.” Marty Kaan was charismatic, manipulative, money hungry and emphatically flawed. Mo essentially is Marty, in another decade with a different team. And he’s just as charming, calculating, greedy, lovely to hate, and entertainingly fun to watch.

Regina Hall is another standout of the show, playing Dawn Towner—the perfectly ’80s Wall Street gun-toting femme. Her performance reminds you why she’s one of the funniest women in Hollywood today and why her recent Walk of Fame star is as deserved as any. And Andrew Rannells hasn’t been this delightful to watch on the small screen since he played Hannah’s snarky gay ex-boyfriend turned best friend on “Girls.” This time he’s a lot less zesty, a bit more naive, and only a touch more dated. A hodgepodge of goofy misfits, including Paul Sheer and the biggest sidekick of all—cocaine—rounds off the small shop team that’s going to bring the Street to its knees.

With a properly eighties mystery subplot leading up to the mystery of who jumps to their death on Black Monday, exactly one year after we meet this cluster of characters, the show is a weekly can’t miss (yes, I’m talking appointment television) unless you like spoilers of “The Walking Dead” proportions.