Stephen, Nick, and Lawrence have been best friends since college. Stephen and Nick are scientists, tasked with finding a cure to the symbiotes which have invaded Earth and use humans as hosts. Removing the symbiote kills the human, and a human doesn't live long once infected. Months after the initial invasion, Lawrence becomes infected and seeks the help of his friends. The rush to find a cure is now paramount, but something is strange about Lawrence's infection. He is still in control of his body, and he can now understand the symbiotes. Nick and Stephen realize he may hold the cure to finally ridding the world of the symbiotes.