The Mother-in-Law by Sally Hepworth is a page-turning story that begins with the death of its title character. Lucy is a young woman without a mother, and over the years she has tried to be in good standing with her mother-in-law Diana. Their relationship is complicated, at best. Diana is a quiet, no nonsense kind of person, and not one to warm up to people, particularly her daughter-in-law. Lucy and Diana have had disagreements over the years, with one incident that got physical. So when Diana shows up dead from a supposed suicide, police begin questioning family members, and Lucy finds herself as a person of interest. This title is also available in audio.