Charles Hayward, a private investigator, is approached by Sophia Leonides, a former lover of his, about investigating the death of her grandfather, a wealthy businessman named Aristide Leonides. Aristide died of a heart attack in the home he shared with his wife, his sons and their spouses, and his grandchildren. Sophia has reason to believe that someone else in the household killed her grandfather. If Charles can figure out who did it before Scotland Yard gets involved, the family might be able to avoid the embarrassment of a media circus.
Charles reluctantly takes the case and soon finds himself wading through the family's tangled web of festering resentments and secrets. Aristide's young new wife is an obvious suspect, but was she really the killer, as so many in the household seem to believe?
