Guy Rolfe is "Major Lawrence" (another one), who sees a portrait of a young girl at a London art gallery and is enthralled. On further investigation he discovers from her refugee father - who recognises his long lost child from her picture - that she is a Jewish lady and is probably still in a post-war settlement camp somewhere in Germany. He sets off to track her down, discovering when he does find her that she "Hildegarde" (Mai Zetterling) has amnesia and can remember little. Not only that, but she has been "adopted" by Herbert Lom ("Hendlemann") whom she genuinely considers to be her real…