In the wake of a horrific car accident that kills her husband, Michael, expectant mother Madeline Matheson discovers that her daughter, Grace, has died in the womb. Ignoring her doctor’s warnings that the fetus must be removed from her body, a grief-stricken Matheson demands to carry the child to term — even if it endangers her own life to do so. Curiously, little Grace emerges undead — and with a craving for human blood.