With the holidays fast approaching and her love life severely lacking, Hailey Miller decides to take the latest dating app, Mixr, up on their invitation to attend their monthly Manhattan get together. There she meets Elliott, who she wasn't matched with, but soon realizes is someone she has more chemistry with than anyone else. Will their connection last long enough for a kiss underneath the mistletoe or fizzle out before Christmas even arrives? [told through a mix of emails, chapters, and texts]