A twin learns her sister has been murdered in New York and travels to the city to piece together what has happened. Molly lives a quiet, contained life in London. Her identical twin Katie is her exact opposite: gregarious and spontaneous. But when Molly learns that Katie has died suddenly in New York, she is thrown into unfamiliar territory. Nothing is what it seems. And a web of deceit is closing around her. Fast-paced and full of twists and turns.