The jealous star conductor Montemayor knows that his beautiful younger wife, Winifred, is cheating on him with an American named Jack Mortimer. After the concert rehearsal, he takes a taxi to the train station, sees Mortimer and shoots him at an intersection from the backseat of his taxi. The shot is not heard during the traffic noise. The taxi driver, Sponer, sitting in his car with the now-dead Mortimer, goes into a panic.

After six years, a man shows up, whom his wife had declared dead. Her current husband is regarded by the son of the once-missing man as his father. Only after many tear can the returning man be convinced not to press for custody of the son.