what is the movie called where there is two kids a boy and a girl who have powers and they are in a backseat of a car with a man bc they are running from somebody and they moved the car that was infront of them

Please help me! I’ve carried the memories of this movie for ever and I can’t ever find out what it was! It’s almost as though I imagined it. I believe it must have been a 1980’s made for TV movie, yikes I can’t remember if it was from the UK or US. I watched it in Europe on TV and it was so so creepy! It featured a girl with long dark hair who would sleep walk into the attic every night. Even though her mother would hide the key every night she’d know where it was. It was the creepiest attic, dolls everywhere and a mirror and all I remember is that she would have these visions in there. I have searched for movie with the word attic in the title, nothing like that comes up!