Simone Campos lives in Rio de Janeiro where she was born in 1983. Her literary debut, No Shopping, was released when she was 17, and since then she has published one short-story collection and four novels. She is also the translator of several English-language books into Brazilian Portuguese, including Paula Hawkins' The Girl on the Train and Margaret Atwood's The Testaments. This is her first thriller.

Rahul Bery translates from Spanish and Portuguese and is based in Cardiff. He has translated novels by David Trueba and Afonso Cruz, and his shorter translations have appeared in The White Review, the TLS, Granta, Words Without Borders, Freeman's and Partisan Hotel. He was the British Library's translator in residence from 2018-2019.