If you want to watch False Positive, just watch Rosemary's Baby. If you don't want to watch a Roman Polanski film, read/listen to the Ira Levin book. The point is, this movie is like if someone you hate tried to explain Rosemary's Baby only to find out they've never seen Rosemary's Baby and are just extrapolating off of a vintage movie poster they found in their mom's garage.