"Knife" is an exciting psychological thriller book written by the famous American writer Harlan Coben. This novel unfolds the story of an eccentric family against the background of a dark family secret. The main character, the father of the family, turns out to be buried in the abyss of lies, betrayal and despair. Readers watch the intrigue unfold on every page, making them feel for each character. "Knife" is not only a thriller, but also a deep analysis of family relationships, the interaction between parents and children, and how the shadows of the past can haunt us into the future. This book will definitely leave you on the edge of understanding the sacrifices that passing truth can make us make.