"Be careful, stranger!" is an exciting psychological thriller by the famous writer Mary Higgins Clark. This book tells the story of a young woman who accidentally met and allowed a mysterious stranger into her life. With each turn of the page, new secrets are revealed, and the reader, together with the main character, uncovers a crime that can destroy her life. This book is full of tension, intrigue and unexpected turns of events that keep the reader in suspense until the last page. "Be careful, stranger!" - is an exciting story that helps to understand how important it is to be careful and carefully choose those to whom we open our heart and soul.