Every March, the town of Stonecroft hosts its annual Iris Festival to commemorate the coming of spring. The festival culminates in the Feast of Iris. This year however, the festival has been vandalized. Mutilated animal bodies litter the festival site and the food for the Feast of Iris has been desecrated. Strange shadows have been sighted in the woods surrounding the town. Something stalks the townspeople, killing through methods science cannot begin to explain.