It is a 60’s/70’s movie??
Think it may have been black and white not sure?
Family living in a 2 story house. It’s encased with only a few metres around the house with steel walls with no way out.
The people in the house discover that everything in the house have a symbol (trademark) on everything in the house. Including themselves.
The house is getting hotter and hotter as they try to find a way out.
At the end of the movie you discover that the house and contents are a doll house and its dolls. That has been put into a heating vent via a cruel older brother of a little girl.
This sounds suspiciously similar to, but not exactly like, and episode from the TV show “Hammer House of Mystery and Suspense.” The episode I’m thinking of is called “Child’s Play.”
http://www.imdb.com/title/tt0088909/?ref_=fn_al_tt_9
No that is not it, I’m am also looking for that movie
It’s black and white