A dead-end job, a slob for a boyfriend, and neglectful friends: this is Kat Wallace's life. Ever since her best friend got married, Kat has been struggling to find happiness.

All that changes when she meets Melody Adebayo, a field agent with the mysterious transdimensional company Clockwork & Associates. Melody's job is to send the consciousness of others to a scarier dimension in order to make them kinder and more grateful for their lives, which, in theory, will influence them to do good.

But when Kat is sent to B-215, she awakes in a world beyond her wildest dreams. She's wealthy, well-liked, and has a successful career. Kat realizes she doesn't need to find happiness in her own world ... she can just steal it from her other self.

Because of a certain (ahem) incident, Melody owes a lot of money to her evil ex-girlfriend, and Kat works out a deal with her in order to keep visiting B-215. With each visit, a sinister plot unfolds. Kat discovers her life is at risk, and she isn't alone in this dimension.

To eliminate the threat, she must team up with Melody, but can the two uncover the truth before Kat loses her life? More important, will they be able to move on from the mistakes they made in the past and find love with each other?