Thrilled that their playwright friend's Broadway debut was a rousing success, Nic and Nigel are trying to enjoy the A-list after-party with their pal Harper. Unfortunately, all the champagne and repartee in the world aren't enough to overlook the churlish behavior of Harper's theater-critic husband, Dan. Nic is shocked the next morning when she learns that Dan's been murdered. Nigel thinks the world may be a better place without him. Still, Harper is their friend and they're intent on helping her any way they can. Invigorated by the thrill of the hunt and fortified by a flood of cocktails, catching the killer becomes the Martinis' top priority . . . with their behemoth Bullmastiff Skippy along for the ride.