Every day is the same. But this will not happen today. Rachel takes the same train every morning. She knows that the train stops at the same signal from where the row of gardens behind the house is visible. She even begins to believe that she knows the people living in one of those houses. He feels that their life is absolutely perfect. I wish Rachel could be as happy as them! Suddenly she sees a shocking sight and in an instant everything changes. Rachel now has a chance to be a part of the lives of people whose lives she had watched from a distance.