Chloë Grace Moretz is adding to her perenially busy slate. Deadline announces she is set to star in “White Night,” an upcoming adaptation of former high-ranking member of the People’s Temple cult Deborah Layton’s memoir “Seductive Poison.” Anne Sewitsky (“Happy, Happy”) will be directing from a script by William Wheeler, while Joseph Gordon-Levitt is set to portray cult leader James Jones.

Layton rose through the ranks of Jones’ cult, and was part of the 1974 move to “Jonestown” in Guyana as an extension of their San Francisco based operations. She escaped six months prior to the infamous tragedy of November 18, 1978, when more than 900 people died in what became known as the Jonestown Massacre, one of the largest mass murder-suicides on record. Just days before, Layton had been giving testimony in Washington D.C., requesting aid for those being held in the encampment.

“Seductive Poison” was first published in 1998. It was optioned by Amy Nauiokas and Anne Carey, who are on-board to produce “White Night” under their Archer Gray banner, with production due to start this spring.

Following her starring role in Desiree Akhavan’s “The Miseducation of Cameron Post,” and appearance opposite Isabel Huppert in “Greta,” Moretz’s most recent credits include Roseanne Liang’s “Shadow in the Cloud.” She also stars in upcoming Amazon series “The Peripheral” from “Westworld” creators Lisa Joy and Jonathan Nolan.

Norwegian director Sewitsky won the 2011 Sundance Grand Jury Prize award in the World Cinema Drama category for her film “Happy, Happy.” She since went on to direct the feature “Homesick,” and episodes of “Black Mirror,” “Castle Rock,” and “A Very British Scandal” for television.

Nauiokas and Carey have worked on numerous titles including “The Diary of a Teenage Girl,” “Can You Ever Forgive Me?,” and “Lost Girls.”