A nurse named Maia gets into an argument with her boyfriend Dean after resolving to never be a mother. Frustrated, Dean insists that one day she'll change her mind. The next night, Maia comes home from the hospital to an empty apartment, or so she thinks. Soon she is face-to-face with the sick man: a disturbingly diseased intruder in need of her care but also prone to vicious temper tantrums. At once dangerous and childishly helpless, the sick man only wants one thing, but Maia's not sure if she has it.