Things might not be ok.
My 4yr old son suddenly woke up screaming one night. I went in his room and he said he was "scared of that man."
I thought he was having a bad dream and took him back in with me. The next day he wouldn't go in his room at all. I went in and it was really cold, although the radiator was on full blast. I put some chocolate on his bed and said he could have it - he still wouldn't go in. He fell asleep on the sofa in the evening and I put him into his bed.
In the night, same thing again, he work up screaming about the scary man. When I asked him where the man was, he pointed in the corner. He kept putting his hands over his eyes because he was too scared to look.
It was horrible and I had a really bad feeling in the room.
Packed up kids and left the house to stay with a friend.
My friend said she knew someone who could help. She found the number, rang the man, but didn't give many details, just my address. He came round the following day, stood on the doorstep for a few minutes quietly, then went straight into my son's room (without me telling him which room was which)
He came out and shut the door, telling me that it was ok now, there was a horrible thing in there but it was now gone. He asked me to put my son on the sofa, he put his hands on my son's head and he fell asleep. The man told me that when he woke up he would remember nothing.
My son woke up, and went straight in this room and started to play. No problems since. The man didn't charge by the way, his help was free.
This sounds ridiculous now I have typed it all out. But it happened and it was really scary. I believe children can see things we can't.