By , Bloomberg View Columnist

“Billions” is back on Showtime — Season 2 began on Sunday — and aren’t you glad? From the start, “Billions” has been a guilty pleasure, a drama about Wall Street that may lack the highbrow seriousness of, say, the Sopranos, but more than makes up for it with wicked portrayals and campy fun.

The central plotline of “Billions” revolves around an epic struggle between a U.S. attorney named Chuck Rhoades (played by Paul Giamatti) and the fictional hedge fund titan Bobby “Axe” Axelrod (played by Damian Lewis). Rhoades is convinced that Axelrod is crooked — guilty of insider trading — and he’s hell-bent on bringing him down. If that sounds familiar, it should: Andrew Ross Sorkin, the financial journalist and co-creator of the show (and a friend and former colleague, I should note) took inspiration for it, in part, from a real-life epic struggle: the one between U.S. Attorney Preet Bharara and hedge fund titan Steven “Stevie” Cohen.

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