John Clark (Richard Gere) is a lawyer with a charming wife (Beverly, played by Susan Sarandon) and loving family, who nevertheless feels that something is missing as he makes his way every day through the city. Each evening on his commute home through Chicago, John sees a beautiful woman staring with a lost expression through the window of a dance studio. Haunted by her gaze, John impulsively jumps off the train one night, and signs up for ballroom dancing lessons, hoping to meet her.