The legendary Bela Lugosi as "the Vampire" teams up with Britain's much-loved "Mother Riley" in this hilarious comedy adventure. The Vampire plans to control the world with the help of his robot, which accidentally gets shipped to Mother Riley. Through radar control, he contacts the robot and orders it to come to him, bringing along Mother Riley! But his life is turned upside down when he holds this most meddling of mothers captive.

Mémé Riley reçoit un robot qui est destiné à son voisin, boss d'un gang de criminels, surnommé "Le Vampire". Contrôlant le robot à distance, il le dirige vers sa maison, mais il transporte du coup la vielle dame qui va lui donner du fil à retordre !