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 thrillers A Stranger in the House, An Unwanted Guest, Someone We Know and The End of Her were all Sunday Times and New York Times bestsellers. Her sixth thriller, Not a Happy Family is available to pre-order now.