While examining the tumour of one of his patients, Martin Montag, a cancer specialist in Berlin, finds that its shape, resembling a yo-yo, brings back memories ... » 

While examining the tumour of one of his patients, Martin Montag, a cancer specialist in Berlin, finds that its shape, resembling a yo-yo, brings back memories of a traumatic incident he suffered as a child. A drama of betrayal and friendship unfolds, intringuingly told by one of Iceland's best-known contemorary writers. «