Connie Sumner (Diane Lane) travels to New York City from the suburban home she shares with her husband Edward (Richard Gere) and young son Charlie (Erik Per Sullivan). It is a very windy day and, caught by a particularly savage gust, Connie falls and bumps into bookseller Paul Martel (Olivier Martinez) in the process. She scrapes her knees, and Paul invites her into his apartment. She stays only briefly, leaving after attending to her knees. She passes the accident off as trivial to Edward, but she is drawn to the younger man and soon returns to his apartment with eventually disastrous results.