Misbegotten

When a couple uses a sperm bank to conceive, their happiness is shattered. The donor they chose was a songwriter, but his identity was stolen by a sadistic serial killer. Now free, the psychopath becomes obsessed with the pregnant woman and his unborn child. He stalks the couple, murdering the husband and kidnapping the expectant mother for a final, terrifying confrontation where she must fight for her life and the life of her baby.