Shannon O'Sullivan meets Declan McGuire on the night of their friend's birthday party and they are instantly drawn to each other. Over the course of the next few months, they continue to run into each other and fall head over f*cking heels. Did Shannon and Declan meet before in another time? In another place? Was it somewhere that love spanned centuries, where intense passion defined every moment? Was serendipity pushing them to be together? But Shannon is engaged to Noah and he is all she has ever known for three years. Does she really love him? Is Noah so safe that Shannon convinces herself she found happiness? Does she go with her heart or her mind? Who does she choose? Or does she end up alone? For mature audiences only.