Celeste is blindsided by Mary Louise; Bonnie contemplates a solution to her mother's suffering and her own ongoing guilt; The Monterey Five feel the pressure of increased scrutiny of Perry's death.
Renata faces an uncertain future when Gordon lands in legal trouble; Celeste opens up to Mary Louise about her relationship with Perry; Ed confronts Madeline about her secrets.
Madeleine is shocked when Abigail says that she doesn't want to go to college; Bonnie exhibits worrying behavior; Perry's grief-ridden mother arrives in Monterey.
Nathan invites Madeline and Ed to a couples' dinner to discuss Abigail, while in light of further evidence of bullying, Ms. Barnes suggests Ziggy be medically evaluated.