This is a second book to 37 days so if you haven't already read the first book, please do so! Millie and X are now apart and must go back to the lives they lived before they knew one another. They struggle to move on but learn to grow on their own. In their days after the unforgivable actions of X, they continue to show each other their love without the other's knowledge. X is faced with the consequences of his actions when Millie is at risk of moving on.