Mimic 2

A school teacher named Remi has trouble with men, but not half as much trouble as they end up having with her. Every guy she's recently dated has been killed and had his face sheared off. Before too long, her school has a serious infestation of giant mutant cockroaches. It's off to the races as Remy, a detective, and her students are trapped inside the school as the creature hunts them down.