A new HBO docuseries pulls the curtain back on the NXIVM organization, a headline-making “sex cult” that operated under the guise of a self-help group. A new teaser for “The Vow” just dropped.

Described by founder Keith Raniere as a “methodology for enhancing human experience and behavior,” NXIVM attracted followers with promises of connection, compassion, and love.

“This is the family that I’ve been looking for my whole life,” one woman involved in the group explains. A former member adds, “You sign a lifelong vow to integrity and honor.”

In June 2019 Raniere was convicted of sex trafficking of children, and conspiracy, among other crimes. He’s currently awaiting sentencing.

“The Vow” debuts on HBO August 23. The docuseries is directed by Jehane Noujaim and Karim Amer, who previously collaborated on “The Great Hack.”