John Suter believes himself to be the only survivor, twelve years after a global plague. Settling into a steady and self-sufficient daily life, he has gradually come to terms with his destiny. He discovers a mutilated body in the river near his house one morning. Alarmed and fearful, Suter knows he has little choice but to investigate the crime. Discovering something upstream, his endurance is tested to its limits and he is compelled to rethink not only his own humanity, but also his place within the human race he had once considered to be wiped out. obooko.