Forgot the name of a scary movie

I saw the trailer for it and basically it’s a movie where a mother moves her son to a rural town and one day loses him in the forest and as she’s looking for him she finds this huge hole in the ground and when the mother finally finds her son again he is acting different and thinks that maybe he fell into the hole and that whoever came out isn’t her son. In the trailer I remember a scene where they were sitting in a car and this old lady came up to the car and started banging her head against the window. There was also a scene where the mother was spying on her son and saw him eat a rat.