Synopsis: Nana emigrated from China twenty years ago. She lives in Madrid with her grandchildren and daughter FangFang in a dark basement full of cockroaches. Something tragic happened to FangFang some time ago, and that event holds the key to the situation in which the family finds itself now. In a story that moves between the past and present, the details and circumstances of that decisive event are slowly revealed, and in this process of discovery, Nana will have to face her past and deal with her mistakes and failures. In turn, and accompanying her in this fascinating journey of self-assessment, the reader will be able to penetrate with Nana in the gloomiest and most unknown nooks and corners of Chinese immigration in Spain, and experience with her a journey of astonishing and heart rendering humanity.