Shari Lapena worked as a lawyer and as an English teacher before writing fiction. Her debut thriller, The Couple Next Door, was a global bestseller, the bestselling fiction title in the UK in 2017 and has been optioned for television. Her second thriller, A Stranger in the House and third, An Unwanted Guest, were both Sunday Times and New York Times bestsellers. Her fourth thriller is out in 2019.

Books by Shari Lapena