The Devil's Child

Though this is a supernatural film, it is still unbelievable in some sense. Seeing that the Devil has powers all that live on earth (in this movie), why can't he simply appear when Kim is about to leave with the child, but instead allows her to take him away for good? Couldn't he make her fall along the way and then just pick the baby up? Or send someone to shoot her and then pick up the baby? Since he can command a girl to kill Lilliard's character, this shows he has powers over the mind, so why didn't he?

Another grouse I have is that why does every supernatural movie with Christian overtones always involve the Catholic church? Don't the denominations believe in the soul and the devil as well? It get boring after a while when you forever see the Catholic church as either the Saviour of the world or the Scourge of the world.

Anyway, the moral of this story is: don't promise what you later would regret.