The Mother-In-Law by Sally Hepworth. Lots of twists and turns in this new page-turner by the author of The Family Next Door. Lucy's mother-in-law Diana is a challenging woman, to say the least. Polite, beautifully-turned out, a leader in the community - and hard as nails. She turns up dead, but while she left a suicide note, the police are skeptical. Suspenseful and engaging, and characters who challenge our beliefs and assumptions.