Michael (Dermot Mulroney) informs his best friend, Julianne (Julia Roberts), of his forthcoming wedding to Kimberly (Cameron Diaz). Julianne rushes over to Chicago to stop the wedding that is to occur in just four day's time. She wants to persuade Michael to marry his best friend. The next three days find Julianne doing her best to split Michael and Kimberly, but to no avail. Then, on the day of...

Michael (Dermot Mulroney) informs his best friend, Julianne (Julia Roberts), of his forthcoming wedding to Kimberly (Cameron Diaz). Julianne rushes over to Chicago to stop the wedding that is to occur in just four day's time. She wants to persuade Michael to marry his best friend. The next three days find Julianne doing her best to split Michael and Kimberly, but to no avail. Then, on the day of the wedding, Julianne tells Michael that she loves him. Will Michael change his mind?