As the police hunt for Iris, the mothers refuse to listen to Lorna's concerns about what the girls are up to. Juliet falls out with Lorna and gets closer to an enigmatic Gigi, while Allegra does a secret deal with K Rizz. The app gets more dangerous, with serious consequences as a photo circulates.

The town comes together in the wake of tragedy. As Grace and Allegra are questioned, will mothers and daughters lie to protect themselves? Lorna and Steven become closer when she finally reveals the truth of her past, but Juliet's life falls apart when Gigi comes to dinner.