Christine Nilsson and her husband, Marcus, are desperate for a baby. Unable to conceive, they find themselves facing a difficult choice they had never anticipated. After many appointments with specialists, endless research, and countless conversations, they make the decision to use a donor.

Two months pass, and Christine is happily pregnant. But one day, she is shocked to see a young blond man on the TV news being arrested for a series of brutal murders—and the blond man bears an undeniable and uncanny resemblance to her donor.

Delving deeper to uncover the truth, Christine must confront a terrifying reality and face her worst fears.