No one could have predicted that on a normal day, under the streetlights of a beautiful, spring-like port city, a momentary flash of thought would lead to a cold-blooded murder: a man would kill his innocent friend. From the moment of the act, a tense and fast-paced chase of the most terrifying kind begins; a nightmarish pursuit of the murderer - perhaps by the authorities, perhaps by the townspeople, perhaps by his own haunted soul. Italo Sabavo, the greatest Triestine writer of all time, was the first to incorporate Freud's thought into his fictional plots. It can be assumed that the psychological dimension was added to Sabavo's literary work after he first became acquainted with the teachings of the father of psychology in 1908. However, the novella before us, written eighteen years earlier, is clear proof that Sabavo was endowed with the ability to delve into the depths of the subconscious and decipher the human psyche on his own, while writing the story in the heart of a united and young Italy. This book is the fourth book in the "Reserve" collectors' series.