Corinna "Corey" Nguyen's life seems perfectly average for a closeted bisexual whiz kid with her eyes on college and a budding romance with her friend Kate. Sixteen years old and navigating senior year with her tight-knit group of best friends through crushes, breakups, and pregnancy scares, Corey mistakenly believes that running for valedictorian, choosing the right college, and coming out of the closet are the biggest things she has to worry about.
That is, until prom night, when she's left alone and in shock, hiding inside a diner bathroom, the only witness to a multiple homicide.
With graduation looming and all eyes on her, the pressure is on for Corey to identify the killer and ensure the crime that has changed her life forever will not go unpunished.