Ben regrets the rainy graduation night five years ago when his fear of commitment drove him to dump Nora, the love of his life. Now a cynical advertising copywriter, he is assigned to promote an app that reunites estranged exes, only to discover Nora is the lead art director on the project. An impulsive confession during a heated argument triggers an astonishing anomaly: whenever Ben speaks his raw emotional truth, his consciousness leaps back into his college body.
Armed with years of adult experience, Ben attempts to alter past events to prevent their separation, only to trigger disastrous butterfly effects that continually reshape the present. As modern-day contract dating assignments rekindle their genuine passion, another temporal leap erases Nora from reality completely. Trapped in a world where no one remembers her name, Ben must risk everything to restore the woman he loves.
