Voluptuous and curvy divorcee, Rita, finds herself giving in more and more to the scandalous instructions of her handsome, confident son. But will Brady push his mother too far?
Lilith Ripinski is a 15-year-old loner, with an annoying 17-year-old brother named Samuel. One day, he pushes her just a little bit too far, and they enter into an intense, surreptitious sexual relationship. "The Book of Lilith" chronicles the development of their incestuous dynamic, their struggle to keep it secret, and the way Lilith's confidence grows as a result of feeling desired for the first time.