Last year was 44-year-old Alice's annus horribilis: her mother died, her dentist husband ran off with his hygienist, and her only daughter packed herself off to Africa with the Peace Corps. The one good loss was all the weight she'd packed on in two decades as a New Jersey housewife. Now newly buff, her hair dyed blond courtesy of her artist friend Maggie, Alice can pass for a 29-year-old. And so she does, embarking on a kind of life swap with her younger self--landing a job in the publishing company she left to become a full-time mom and leaping into a torrid affair with a gorgeous, decent 20-something.