Cute story, 3.5 stars. I didn't find the "mystery" terribly mysterious, but it didn't seem like I was supposed to; it was more of a romcom than a mystery, and as such it worked for me. I was a little nervous I'd find it too "insta-lovey" given the story takes place over 24 hours, but I thought that aspect was handled well. The ending is more one of possibilities than even truly HFN, and given the 24-hour time-period, I think that's perfect.