Christmas comes but once a year—unless you're Natalie Miller.

Natalie isn't sure what she really wants out of life. Singing with an a capella group is her real love, but it's hard to let go of the security of her day job, even though it's interfering with her busy holiday show schedule. Torn between her options, she flips a coin, but can't bring herself to look at the result.

The next thing she knows, she's living every December day twice. At first, the holiday do-over seems like a gift. She has the chance to learn from her mistakes and avoid pitfalls. Things get more complicated as her two lives diverge. In one life, she gets to work on a glamorous account and spend a lot of one-on-one time with a handsome executive—but she has to give up music. In another life, her job is in jeopardy and she has to deal with a grouchy client—but she's doing things that matter to her, and that client has hidden depths.

As Christmas Eve approaches, the double life grows more and more challenging. Will Natalie be able to break the spell and land in the right life—and with the right man—for good?