A dinner party. A stolen emerald. And murdered dinner guests. Barnaby Wilcox is out of his element. He accepts an invitation to an evening at a mansion of all places. Still, it’s a free meal and a chance to forget his problems for one night. Could be fun. But when a priceless gem disappears and his fellow guests start dying off, Barnaby knows this isn't going to be the relaxing trip he'd envisioned. As the body count grows and a violent storm traps everyone in the mansion, Barnaby must maintain his own sanity to pacify a group of people who are rapidly succumbing to paranoia and fear—if he, or any of the other guests, is going to make it through the night alive.