A lonesome employee (Mic) is on the lookout for the woman he could love and who could link him to the world. Fleur Bleue, his correspondent on a chat for months, once again slips away. From now on Mic will be systematically the closer witness of a series of murders committed by a man with a dog's face. He tries to alert other people but in vain : he fails to make himself clear. He finally is really lonely in this big city where he crosses so many people's way. The mysterious killer with a dog's face seems to hound him deliberately and becomes more and more frightening. Anyway Mic will have to return to Fleur Bleue despite her to strong cynicism...