For unknown reasons, a passenger car crashes into a long-distance train. Eleven people die in the accident. But what preceded the disaster? Is anyone else at fault besides the driver? Delving deeper into the past, we see how accidents inexorably intertwine into an endless network, creating the present, how our actions influence the course of events far beyond the boundaries of our own lives. “The Butterfly Effect” is a novel about loneliness and the search for meaning, about the struggle of free will against the power of childhood trauma, about the unwillingness to come to terms with reality and the fact that sooner or later we will have to part with all life’s anxieties... Karin Alvtegen (b. 1965) is a famous Swedish writer, a master of the psychological thriller and detective genre, winner of numerous literary awards, including the Glass Key award for the best crime novel in Scandinavia.