While You Were Sleeping (1995)

Nursing a secret and hopeless crush on the handsome commuter who passes her booth every day, Lucy, a charming loner and Chicago Transit Authority ticket booth operator, is about to have a second chance at love. During one seemingly ordinary Christmas shift, she witnesses the object of her desire falling off the platform, and in one of those spur-of-the-moment decisions, she saves him from certain death, only to be mistaken for his fiancée at the hospital. As she enjoys the unexpected stroke of good luck, unable to tell the truth to his welcoming family, unforeseen romantic affairs further complicate matters. Now his suspicious brother, Jack, thinks he's onto something. Will Lucy face the consequences of what happened while he was sleeping?