Lucio, a normal man in a normal (nosy) city neighborhood with normal problems with his in-laws (ever-present) and job (he lost it) finds he has a new problem on his hands: his beloved wife, Diana. She's been staying out till all hours of the night and grows more disagreeable by the day. Should Lucio have Diana committed to the Psychiatric Institute, as her friend the dog trainer suggests? Before Lucio can even make up his mind, Diana is carted away by the mysterious head of the institute. Never mind, Diana's sister, who looks just like Diana--and yet is nothing like her--has moved in. And...