Life appears perfect for super-mum Juliet and self-made businesswoman Lorna. But when a scandal threatens their daughters Grace and Allegra, we realise that nothing is as it seems.

Juliet's night-time secret forces her into a dangerous lie, and Lorna confronts the past she has been hiding from Grace. The girls ramp up the app with shocking results, and Iris is missing. Gigi hosts an event that takes a dark turn when the police show up.