The Greene Murder Case
by S. S. Van Dine
Members of the Greene family keep dying while the pool of possible perpetrators keeps shrinking. Philo Vance—the independently wealthy, staggeringly brilliant, not remotely modest (and did we mention handsome?) amateur sleuth—uses his detective skills to unravel the murders, though sadly not before most of the Greene family has been bumped off. But that's Our Philo: The Sleuth You Love to Hate.