At a romantic dance, the ordinary guy Noah (Adam DeVine) met the beautiful girl Ivy (Alexandra Daddario). Whether in appearance or personality, Ivy is obviously Noah's ideal type. The relationship between the two quickly heated up in just one night. However, just when it was about to reach its peak, Ivy rejected Noah's courtship and made it clear that the two were just ordinary friends. In the next three years, this friendship had no possibility of further development, which puzzled Noah and didn't know what he had done wrong. By chance, Noah unexpectedly gained the ability to travel in time. He decided to return to the decisive night of encounter three years ago. Time and time again, Noah vowed to capture Ivy's heart.