Ben and Dani are a young Los Angeles couple who fuel their fractured intimacy by playing a twisted, adrenaline-inducing roleplaying game in local bars: Dani flirts with unsuspecting strangers until Ben swoops in to "steal" her away. However, after Ben intensely offends her at a party, Dani decides to weaponize the game for revenge. At their next stop, she cold-shoulders Ben and deliberately walks out with a handsome stranger named Miles. As a desperate Ben tracks them through the sprawling city, Dani plunges into a dark forbidden romance simulation—sending her boyfriend taunting, graphic text updates from Miles' house. What began as a recreational kink devolves into a nightmarish psychosexual boundary-pushing match, exposing the couple's toxic addiction to voyeurism and emotional cruelty.