When India falls to her death from a bridge over a railway, her sister, Poppy, returns home to Brighton for the first time in years. Unconvinced by official explanations, Poppy begins her own investigation into India's death. But the deeper she digs, the closer she comes to uncovering deeply buried secrets. Could Matthew Temple, the boyfriend she abandoned, be involved? And what of his powerful and wealthy parents and his twin sister, Ana? Enter the mysterious and ethereal Jenny: the girl Poppy discovers after hacking in to India's laptop. What is exactly is she hiding, and what did India find out about her?

Taking the listener on a breathless ride through the winding lanes of Brighton, into its vibrant party scene and inside the homes of its well-heeled families, The Other Twin is a startling and up-to-the-minute thriller about the social media world, where resentments and accusations are played out online, where identities are made and remade and where there is no such thing as truth....