A suspicious death at a coastal elementary school draws attention to the frictions among three mothers and their families.

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

Madeline irks Renata; Celeste succumbs to Perry's charms; Jane opens up to Madeline 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 gets encouraging news about the play; Jane is told of the school's decision about Ziggy; Celeste is put on the spot by her therapist.

Madeline worries about Jane's behavior; Jane confronts Renata about a school petition; Bonnie tells Nathan about Abigail's secret project.

Celeste takes steps towards independence; Madeline deals with fallout from her past; Jane learns the identity of the school bully.