Star Levine, a psychology major at the University of Washington, has a life most would envy: a great boyfriend, a supportive best friend, and typical college concerns. But her world shatters when she locks eyes with Tristan Montgomery, a pre-med student and fellow UW student. An undeniable spark ignites, and a stolen kiss unleashes a flood of memories from past lives.
Tristan, a pragmatic loner, struggles to reconcile his newfound feelings with his scientific worldview. Yet, he can't deny his growing love for Star as they both experience strange blackouts and vivid flashbacks of past lives-lives where they were tragically torn apart while trying to save each other.
As their secret deepens, Star's best friend, Zack, grows suspicious. Can Star and Tristan escape the gravitational pull of a history doomed to repeat itself? Will their love finally defy destiny, or are they fated to lose each other once more? And who will need saving this time?