Late Rain — Lynn Kostoff

Corrine Tedros is a Lady Macbeth wannabe who sets in motion the murder of her uncle-in-law (a soft-drink mogul), and things go awry when the murder is witnessed by a senior citizen in the late stages of Alzheimers. Things are complicated by the fact that the daughter of the man with Alzheimers is involved with a former homicide detective who has resigned and moved South in an attempt to reshape and simplify his life; on his own, Decovic starts to make connections in the case that cause Corrine Tedros to up the ante in keeping herself out of the murder investigation.

A book about desire and need and the fear that drives how far the characters are willing to go to find what they want.