The last time we saw the women of BIG LITTLE LIES, their children were five years old. Now they’re teenagers. When the high school principal receives a threatening package in the mail, word quickly spreads throughout the community. But Madeline, Celeste, Jane, Renata and Bonnie have other things to worry about. Celeste’s mother-in-law is behaving oddly. Madeline is facing perhaps the biggest challenge of her life. Jane is at a dangerous fork in her marriage. Bonnie has realized there’s only so much solace in yoga. And Renata is living her best life --- revenge is sweet. When a stranger begins lurking around the school asking supposedly innocent questions, this tightly connected group of women finally must face the full repercussions of the big little truths they have and haven’t shared with their kids.