Lucas is a young scientist obsessed with the analysis of movement: that of the horses he studies in his laboratory, that of the clappers he practices as an amateur. His professional and sentimental life seems like a stalemate when his brother Luigi, a passionate horse breeder and little crook,who is accidentally killed by a stallion, Mister V. He knows that the animal is the subject of an insurance scam and must be shot against the will of his brother, who had seen in him a future champion. He t...