Joanna Robinson and Richard Lawson discuss "What Have They Done?" the first episode of the second season of Big Little Lies on HBO

In the second season, Andrea Arnold takes over directing duties as we return to Monterey, California for another season of Big Little Lies. Meryl Streep joins the already packed cast as Mary Louise, Celeste's step-mother. The new addition complicates the relationship between Celeste and her boys, and the attempts of the "Monterey Five" to keep their secret.