See No Evil (1971)
Young blind Sarah is staying with relatives in their English countryside manor An unknown maniac enters the house and murders all of Sarahs relatives When the culprit realizes that Sarah is still alive, he pursues her
The Amazing Mr. Blunden (1972)
Two children befriend ghosts in a haunted mansion To help the ghosts, they make a potion allowing time travel to the past After becoming housekeepers, they return to the mansions past and aid the dead children
The Third Key (1956)
The sleuths of Scotland Yard try to solve a series of burglaries