Mrs. Perch, an elderly, wealthy lady from rural America, is throwing a fancy garden party at her remote country villa. Same procedure as every year - except this time her illegally imported plant fertilizer seeps into the ground. Subsequently, a local species of killer wasps that usually lay their eggs into other insects mutates into 7 ft tall predators. And the celebrating upper class company provides just the right kind of prey. It's up to Paul and Julia, the two catering staffers, to stop the creatures, fight for their lives, and incidentally get their stumbling romance in order.