Plot synopsis

Ten years ago, Sarah refused that her son Thomas abandoned her studies to devote herself to her vocation as a painter. The young man left and has never given a sign of life again. His mother feels guilty and continues to undertake research to find him. A private detective shows him the catalog of an auction in Saint Petersburg in which Sarah believes to recognize drawings by her son. She immediately left for Saint Petersburg. But, she discovers there that the drawings are not from her son. She continues her research