A girl is on the tube on the way to go to a job interview when suddenly the train abruptly stops and the lights flicker and the intercom says there is a dangerous person on the tube and there is an emergency evacuation. The girl leaves with everyone else only to realise she has left her bag with her resume and everything she needs for her interview on the train. She rushes back in, only to realise that the doors have shut and locked behind her (idk if this will be on the tube or just the station doors) She is locked in with the murderer, she's scared. She tries to find a way to get out when she bumps into someone, she screams thinking it is the murderer. It turns out it's a large group of people, apparently they got trapped too and have managed to find everyone else who is trapped now. The problem is, one of them HAS to be the murderer, so now she has to figure out how to get out, without getting killed.
