With the second season of Showtime's dramatic "The Masters of Sex" opening Sunday night, this fan-made infographic is seeking to generate buzz for the based-on-true-events show.

READ MORE: Watch Lizzy Caplan and Michael Sheen in Season 2 Trailer for 'Masters of Sex'

Just how true is it? Bill Masters and Virginia Johnson revolutionized recreational sex with their groundbreaking research in the mid-twentieth century, but some critics of the show point out just how hard some parts are to believe. "The things that are the most shocking in our show are true," said Lizzy Caplan, who plays Johnson. Thankfully, this infographic spells in all out, sorting fact from fiction. Check it out below or click here for the larger size.

"Masters of Sex" infographic