Elizabeth Holmes' partner, Billy Evans, is the real villain in 'You Can See Everything.' Here's what to know about him.

Elizabeth Holmes and Billy Evans leave federal court in San Jose, California, in 2022.

David Paul Morris/Bloomberg via Getty Images Elizabeth Holmes, the Theranos founder convicted of fraud, has two kids with William "Billy" Evans.

Evans plays a big role in Nathan Fielder's new A24 documentary, "You Can See Everything." In the film, Evans says he's trying to launch "Theranos 2.0," another blood-testing startup.

William "Billy" Evans emerges as the unlikely star of " You Can See Everything ," the new A24 documentary about Theranos founder Elizabeth Holmes .

But while Evans is certainly a scene-stealer, the doc doesn't cast him in the best light.

Evans is Holmes' partner and the father of their two young children.

The couple met in 2017, and, as Evans says in the doc, fell in love instantaneously.

The couple welcomed their first child, William, in 2021.

Their daughter, Invicta (Latin for "invincible"), was born sometime around February 2023 , just a few months after Holmes was sentenced to 11 years in prison for defrauding investors.

Holmes has said she knew it was bad timing — to put it lightly — to fall in love and start a family.

But she didn't want her felony convictions or the perception of outsiders to "dictate how we live our lives." "Finding your person in the middle of all of this and experiencing that love when you're going through hell is the most beautiful thing I've ever experienced," Holmes told The New York Times in 2023.

In the weeks before her looming incarceration, Holmes and Evans invited comedian Nathan Fielder to observe and document their domestic life.

The resulting film, "You Can See Everything," depicts Evans as a dominant force in their home — chiding Holmes for how she prepares scrambled eggs, dictating her schedule, and frequently cutting in during her conversations with Fielder.

Holmes reported to prison in May 2023, but the movie doesn't end there.