I rented this movie two or three years ago. It was crazy. The woman gives birth and when the dad comes in the doctors and everyone have all been bloodily murdered by the infant. It runs off and the movie is all about hunting it down...its a freak!
This movie truly freaked me out when I saw it. I was probably about 8 or so. You only get a quick glimpse of the baby, and it has the horrific fang teath.