In the affluent beachfront community of Monterey, CA, a suspicious death at an elementary school fundraiser draws attention to the frictions that exist among some of the mothers.

Jane deflects questions from Ziggy; Madeline is outraged over a slight from Renata; Celeste suggests she and Perry see a counsellor.

Hoping to get under Renata’s skin, Madeline organises a trip to compete with Amabella's birthday party. Celeste succumbs to Perry's charms. Jane opens up about her past.

Nathan invites Madeline and Ed to a dinner to discuss Abigail; Celeste backs Madeline’s play, despite Perry’s concerns; Jane unlocks a key to her past.

Madeline receives encouraging news about the play. Principal Nippal and Ms Barnes share their conclusions with Jane. Celeste has a solo session with Dr Reisman.