Once upon a time there was a woman in a shoe. She fell in love and had some kids, but didn't know what to do. Her husband had deserted her. One plus one is two. Time had passed, and now we look at the fate of her first son. He fell in love and had some kids, and lived his life, was done. His wife had stayed right by his side. One plus one is one. His brother, though, had no such luck, though his younger years were fun. He met a siren, heard her call, and soon his days were done. He killed her with his final breath. One plus one is none.