We all have that one person for whom our heart will always beat. For Amy, that person is Caleb – charming and sweet, but an incorrigible womanizer. Friends through thick and thin – sometimes more – they’ve known decades of each other's relationships, careers, and experiences. But standing on the sidelines while he’s happy with other people begins to take a toll on Amy. The unfulfilled promise of a future together tears at the seams of her sanity.
After finally getting the guy, her walls come crumbling down when she discovers Caleb’s been in a relationship with someone else all along. What begins as simple curiosity about the other woman in his life quickly turns into a spiral of obsession that she can’t seem to escape. Sophia is uninhibited, talented, and funny – but worst of all, she reminds Amy of herself. They have so much in common that they could be the same person. And they’re unexpectedly brought together by the most important thing they share: Caleb.
Facilitated – or perhaps fueled – by technology, they peer covertly into each other’s lives. The digital power struggle comes to life in a whirlwind of jealousy, lust, obsession, and hatred. Together, they explore the twisted bond that exists between them. What starts as idle curiosity becomes obsession, which very quickly descends into something much more menacing.