A centaur is a mythological creature with the head and torso of a human and the legs of a horse. In various legends, it can appear as both an enemy and a friend to humans, often acting as a mentor. This duality of interpretations, as well as the expression that a car is an iron horse, perhaps explain the title of the new Russian thriller "The Centaur." The protagonist, Yuri Borisov, is a taxi driver. He prefers to work at night, of which he informs his very first passenger, whom he…