Wendy Williams' temporary guardian has filed a lawsuit against A&E Television Networks, the parent company of Lifetime, which is set to release a staggering documentary about the former television host this weekend.

Sabrina Morrissey filed a lawsuit under seal against the network in New York County Supreme Court Thursday, USA TODAY has confirmed. The case says Morrissey is "acting in her capacity as Temporary Guardian of W.W.H." with the initials presumably for Wendy Williams Hunter, the 59-year-old host's legal name from her marriage to ex-husband Kevin Hunter.

The lawsuit also names Entertainment One Reality Productions, the documentary's producer, as a defendant.

USA TODAY has reached out to Morrissey's attorney and representatives for A&E and Williams for comment.

Morrissey is suing for injunction relief and a temporary restraining order, both measures that can be used to keep a party from doing a certain action.

Lifetime is set to release the two-part Lifetime documentary "Where is Wendy Williams?" which traces Williams' abrupt exit from public life, Saturday and Sunday. The network previously aired a biopic about the talk show host's life, "Wendy Williams: The Movie," and a documentary, "Wendy Williams: What a Mess," both in 2021.

The documentary trailer teases harrowing behind-the-scenes footage of Williams struggling with her health, as well as candid new interviews with her, marking a rare public appearance for the former talk show host. At one point, she clutches a pillow as she begins to cry.

"I have no money," Williams says. "I'm going to tell you something. If it happens to me, it could happen to you."

In 2022, Williams was placed under a financial guardianship. Wells Fargo argued at the time that she was an "incapacitated person," according to The Hollywood Reporter.

Wendy Williams documentary to air after lawsuit, dementia diagnosis

According to Lifetime, cameras have been chronicling Williams' efforts to "reclaim her life and legacy" for almost two years.

"The documentary provides a raw, honest and unfiltered reality of Wendy's life after she was placed under financial guardianship, shedding light on the vulnerabilities that has turned Wendy into the Hot Topic herself," the network said. "Suffering mental and physical issues, Wendy's delicate state of mind, erratic behavior and declining health were all captured by the cameras."

Last year, Williams was diagnosed with primary progressive aphasia and frontotemporal dementia, according to a Thursday press release from her representatives.

"Wendy would not have received confirmation of these diagnoses were it not for the diligence of her current care team, who she chose, and the extraordinary work of the specialists at Weill Cornell Medicine. Receiving a diagnosis has enabled Wendy to receive the medical care she requires," the press release said.

Talk show host Wendy Williamsdiagnosed with frontotemporal dementia and aphasia

Wendy Williams' documentary comes after abrupt talk show end in 2022

In March 2019, Williams announced she was living in a sober house. Then, a month later, Williams filed for divorce after 21 years of marriage to Hunter, a co-executive producer of Williams' long-running daytime talk show "The Wendy Williams Show" also known as "Wendy." The talk show host and Hunter share one adult child, Kevin Hunter Jr.

Two years later, in fall 2021, "Wendy" experienced several production delays. A rotating slate of guest hosts stepped in to help host the show including Leah Remini, comedian Michael Rapaport and former co-host of "The View" Sherri Shepherd. "Wendy" was canceled in 2022 after Williams took medical leave during a battle with the autoimmune disorder Graves' disease.

Later, the production company behind "Wendy" replaced the program with "Sherri" featuring Shepherd in the same timeslot in September 2022.

When does the Wendy Williams documentary air? How to watch 'Where is Wendy Williams?'

"Where is Wendy Williams?" will air on Lifetime on Saturday and Sunday at 8 p.m. ET/PT. On Friday, the network will air Wendy’s biopic, "Wendy Williams: The Movie" and her documentary, "Wendy Williams: What a Mess."

Contributing: Jay Stahl and Brendan Marrow