Mayhem plot
"Hostile. Work. Environment."
Derek Cho (Steven Yeun) works as a lawyer at a successful law firm. He is about to be fired when a life-threatening virus suddenly breaks out in the building. The government immediately intervenes and closes the entire building to protect the outside world. Panic strikes among the employees who are now locked up together. Derek, together with Melanie (Samara Weaving), a disgruntled client, decides to forge a bloody road to the top floor to confront his corrupt employers with all the consequences that entails.