Lisa Manning and her children Ellie, 11, and Jaydon, six, have fled their house in terror several times because of bizarre goings-on.
They include pots and pans being thrown around the kitchen, window blinds moving up and down by themselves, lights being switched on and off and drawers being opened.
Last week they were even forced to climb out of a window after being trapped in their living room when the door locked by itself.
Now they have been advised to wear crucifixes by a priest after capturing video footage of a chair moving by itself in Ellie's bedroom.
Carer Miss Manning, 34, shot the film two weeks ago after putting hidden cameras in the family's home in Holbrooks, an area of Coventry.
The 52-second clip shows a wardrobe door opening before a pink swivel chair moves slowly backwards towards the wall.