Hammer House of Mystery and Suspense: Child's Play/And the Walls

They were totally cut off from the outside world... and inside things were getting desperate. The walls just would not crack... now, death is only a matter of time. Their home has become a prison - they must find a way out... or die. When Mike and Ann Preston wake to find their house has been mysteriously surrounded by brick walls they try everything they can to break out. But, the walls show no sign of cracking and as tension mounts and the heat becomes unbearable sheer desperation takes over the Preston family. But why does their daughter Sarah seem so strangely happy amidst so much panic and terror. This gripping story shows the fiercest of fights for survival as it twists into a thrilling and totally unexpected climax.