When Saffron is forced to do work experience at a tech company, she gets into an argument with her supervisor over which high school stereotype would survive the longest in a horror film: the sports star? The queen bee? The geek? The drama girl? The class clown? The rebel? Unbeknown to them, the AI robot she is working on at the time decides to determine the answer by testing it out for real. It designs an algorithm to search social media and school records to find the best examples of each stereotype from the neighboring towns and the invitations go out - six people, including Saffron's perfectionist sister Georgia, will be trapped in a series of deadly escape rooms and only one will survive the night.