Following first-day-of-school events, Madeline is worried by Bonnie's behavior. Mary Louise, Celeste's mother-in-law, offers her unvarnished assessment of Madeline's character. Jane learns from her new coworker, Corey, that she's known in town as one of the “Monterey Five.”

Renata faces an uncertain future when Gordon lands in legal trouble. Corey asks Jane out on a “practice” date. After a challenging therapy session with Dr. Reisman, Celeste opens up to Mary Louise about her relationship with Perry. Bonnie's mom, Elizabeth, arrives. Ed confronts Madeline about her secrets.

Celeste accuses Mary Louise of overstepping boundaries with Jane. Renata endures a prying court hearing with Gordon. Jane opens up to Corey at Amabella's disco-themed birthday party. Madeline continues to try to make things right with Ed.

Renata deals with the fallout from Gordon's legal troubles and attempts to help Celeste. Bonnie relives painful memories from her past.

Celeste is blindsided by Mary Louise. Gordon continues to disappoint Renata. Bonnie contemplates a solution to her mother’s suffering and her own ongoing guilt. Ed entertains an unusual proposition before catching Madeline in an unguarded moment. The Monterey Five feel the pressure of increased scrutiny of Perry’s death.

Celeste questions Mary Louise about a tragic event from Perry’s childhood. Madeline worries their lie is tearing the Monterey Five apart.