The author Ulf Herrstromer born in Gothenburg, Sweden in 1937 and living in the village of Kullavik ten miles south of Gothenburg is a retired physician married to Mona, a neurosurgeon nurse. The couple have three children and five grandchildren to date. 1996 Ulf Herrstromer won first price in a limerick contest among Swedish physicians and then discovered that he found it easy to write. He continued writing fiction and has so far published two limerick books and now this crime novel.