A businessman gets stuck in his office elevator, but this nuisance soon turns into a nightmare, for in the outside world a zombie apocalypse has taken place...

Dj Steph is a young radio deejay on the rise, who gained a lot of popularity on social media and every evening hosts a radio show with a large following, during which he receives calls from his fans. One evening, a call chills him to the bone: a cold-blooded stranger announces on live radio that he plans to take his own life, making himself explode in the middle of the city.