Monica has an unexpected visitor, her mother Joan, who no one's seen for twenty years. Suddenly all Monica's childhood insecurities come flooding back. But Joan has a secret, she's got Alzheimer's disease and has a very important task for Monica but, she can't remember what it is. When Stan confesses to Yvonne that he's got a soft spot for her he gets a little more than he bargained for, in the stock room, up against the shelves and behind the frozen goods.