"Co-worker" is an exciting thriller that raises questions of loyalty, betrayal and moral dilemmas. The author of the book, British writer Chester Himels, tells the story of an ordinary man who finds himself at the crossroads of life and death. The hero, rejecting his former identity, finds himself drawn into the espionage games of the Cold War. Is he able to make a choice between loyalty to his native country and justice? A variety of vicissitudes, unexpected plot twists and deep philosophical thoughts make this book a must-read for fans of good thrillers.