Vee Delmonico, a high school senior who typically plays it safe, decides to step out of her comfort zone and join an online game called "Nerve." This game is a high-stakes version of truth or dare where players complete increasingly risky dares for money and fame under the watchful eyes of anonymous "watchers." Then, paired with another player, Ian, the two quickly rise in the ranks due to their chemistry and daring stunts. As Vee gets more drawn into the thrill and the rewards, she discovers that the game's influence extends far beyond what she initially anticipated.

As the dares become more perilous, the dark side of the game begins to surface, revealing that quitting isn't as easy as she thought. Vee's relationships and personal safety are put in jeopardy as the game's intensity escalates. What began as a fun adventure spirals into a perilous journey where Vee must navigate her way out of a web of deceit, all while trying to reclaim control over her life.