Katherine has a bad Valentine's Day both at work and with her date. During the day, she meets a lady with a dog who advises her to think about what she can do better. The next day, Katherine wakes up to the same Valentine's Day again. And this repeats itself while she slowly understands that she needs to think differently about what she wants and what kind of love she is looking for.
Another "Groundhog" movie and this one is actually pretty good.