Its follow-up, Summer House With Swimming Pool, doesn't stray too far from that successful formula, in that it wallows in the darkness lurking under the surface of respectability: the thoughts we can't acknowledge and the things we would allow ourselves to do if we thought we could get away with them.
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Marc Schlosser is a GP whose patients seem largely to comprise arty types whom Schlosser feels look down on him for being a mere physician. He's become jaded, fed-up with his clientele.
However, he's a little more receptive to celebrated stage actor Ralph Meier, who's about to become even more famous in an HBO series about Augustus Caesar, and accepts an invitation to drop by the Meiers' summer house when he's on holiday with his wife and two daughters.
As the story begins, Meier is already dead and, as a result, Marc faces accusations of malpractice. Later, in flashback, we see the Schlosser family's holiday, their hook-up with the Meiers and the nightmarish circumstances that led, somehow, to Meier's death.
As befits the author of grimly sardonic social satires, Koch seems to delight in an unapologetic, red-blooded form of misanthropy, introducing us to several lecherous, untrustworthy men, chief among them being the sybaritic Meier himself, a fellow of gargantuan appetites who appraises women like fine dishes on a table.
He has an eye for Marc's wife. But Marc also has an eye for his. And Marc's own primal nature isn't hard to awaken either.
It could be argued that Koch is too relentlessly cynical about human beings, but his comedic sense is clearly engaged at all times, and, furthermore, like a thriller writer, he understands that darkness and grit can drive a plot and ramp up tension like nothing else. Even more than The Dinner, Summer House With Swimming Pool has the capacity to induce discomfort, but it shares that book's ridiculous readability, daring one, in vain, to try putting it down between chapters.