Erin Doherty stars as Becky Green in this modern mystery thriller series, which sees social-media-obsessed Becky uproot her own life and assume a new identity to investigate the sudden death of Chloe, the glamorous influencer whom she had idolised. Chloe's life had seemed a world away from Becky's own experience of living with her mother in a small flat, but soon Becky sets out to infiltrate Chloe's circle of rich and beautiful friends as she becomes determined to find out the truth of what happened to her. The drama plays on both the thrilling and the tragic senses of living a double life, as Becky discovers she is not the only person who has been pretending.