Senile dementia affects poor old man Andy Casanova, who, left alone in case by his young step son, consoles himself by watching Legalporno's porn films. Fortunately, when the step son goes to work, he will be complicit together with the attractive daughter-in-law in countless perverse games ... but that's not enough, she will have to perfectly imitate the sexual performances of the actresses he is in love with, and who better than him to teach her how to do it !!