5. The Silent Patient by Alex Michaelides
The fifth bestselling novel on our list is also a debut: In Alex Michaelides’ wildly successful first novel The Silent Patient, a woman shoots her husband five times after he comes home late from a photoshoot and then goes mute, refusing to say a single word to anyone. A criminal psychotherapist is determined to solve the case – but how can he get her to talk? “This edgy, intricately plotted psychological thriller establishes Michaelides as a major player in the field,” praises Publishers Weekly in a starred review.