The rise and fall of Theranos, the blood-testing company whose technology never worked despite its claims otherwise, has already been covered extensively. Most notably, the two-time Pulitzer Prize-winning reporter who broke open the story of Theranos’s secrets and lies, John Carreyrou, went on to author a best-selling book about the saga in “Bad Blood.”

Still, with Theranos founder and CEO Elizabeth Holmes continuing to face criminal charges that she knowingly defrauded investors, along with Theranos’s former president and COO (and Holmes’s longtime lover) Ramesh “Sunny” Balwani, the company and the pair’s trajectory remain a point of fascination for many.

A new documentary produced by ABC’s “Nightline” — along with a six-part podcast series whose first episode is being released today (the others will be pushed out every Wednesday through February’s end) — will undoubtedly stoke even more questions about how investors and customers like Walgreens bought the act in the first place.

So we gathered after speaking yesterday with Rebecca Jarvis, ABC News’s chief business, technology and economics correspondent, who led a three-year investigation into Theranos and Holmes, a Stanford drop-out who would go on to win acclaim as the youngest self-made female billionaire in the world before everything, very slowly, crashed down around her.

Some outtakes from our chat with Jarvis follow, edited lightly for length. (Note that an air date has not yet been announced for the documentary, but ABC has begun running trailers.)

TC: You’ve been covering this story for years. Given all that you’ve seen in the depositions that “Nightline” plans to air as part of this documentary, and everything you’ve learned in your reporting, who was the worse actor in all of this, Holmes or Balwani? John Carreyrou certainly painted him as a kind of Svengali figure.

RJ: Most of what we’ve seen publicly to this point have been official statements, or statements made in very nurturing environments, or interviews don’t explicitly look at the technology itself. When we got access to these depositions — and it’s hundreds of hours of footage — we couldn’t believe our eyes, watching Elizabeth Holmes’s deposition. It was just remarkable, hearing her having to answer to questions in a way that she’d never had to previously.

As for [the way Holmes and Balwani operated], Tyler Schultz [a former employee who later became a whistleblower] has said, for example, that he was flagging things that were wrong to Elizabeth, and after he would flag a concern, she would react with a non-response. It was Sunny who became known as the enforcer, telling Tyler to watch himself and not to continue to raise these issues.

TC: Are they open about their romantic relationship in the footage being aired?

RJ: Yes. We’ve never heard of them speak of it before, and viewers will see them talking about this relationship.

TC: What was something in the many depositions you pored over that really took your breath away?

RJ: One of the things that we heard over and over again, talking with various parties, including customers of Theranos, is that Elizabeth Holmes had told them that these Theranos-manufactured devices had been deployed in hospital rooms, emergency rooms and medevac helicopters among other places, and she’s asked if this is accurate, and in every single case, the answer is no.

Naturally, too, this whole thing was predicated on being able to run tests on a few drops of blood, and for the first time, you see Elizabeth having to answer questions about what the devices were really capable of. A lot of what comes up is how much of this was aspiration versus reality, and the great divide between those two things.