Retired agent Vivian is sent to a nursing home by her daughter after speaking out against injustice. Sharp-witted and unyielding, Vivian soon suspects that something is off with the home's director Martin Graves and the resident doctor Leonard Cain. Spurred by a warning from fellow resident Thomas Wood, she begins investigating and uncovers signs of food shortages and suspicious medications—but every time, Leonard offers a "reasonable explanation." After her daughter makes a payment to the home, the villains drop their masks and trick Vivian onto an operating table. Using her smarts and courage, she manages to fight back—only to be ambushed. A week later, at a home-wide assembly, Vivian publicly exposes the entire scheme. With the criminal gang finally brought to justice, Vivian earns the respect of the entire neighborhood—and a proposal from Thomas.
