Yvonne Ester Leo, a wealthy, young, and beautiful woman, after discovering the true identity of the man with whom she had fallen in love, decided to leave him.

Accepted an offer from Shemona-Lisa, a drag performer, to move to her mother's country home.

 

Shemona introduced her to her cousin, Gale Roubin, an owner of a bookstore, who hired her as an accountant.

 

One of the regular customers, sister Maleys, a nun who often visited the store, impressed with Yvonne's knowledge, invited her to visit the Abby. Yvonne, mesmerized by the serenity, decided to become a nun only to discover a terrifying secret.