B.A. Paris

B.A. Paris is a Franco-British writer of fiction, mainly in the psychological thriller subgenre. Her debut novel, Behind Closed Doors, was a New York Times and Sunday Times bestseller. It has been translated into 40 languages and has sold more than 3.5 million copies worldwide.

Book Link: The Guest 
Website: https://www.baparis.com/
Publisher: Hodder & Stoughton