Lillian, a stunning 23-year-old office worker, is standing in the sweltering heat of her corporate campus parking lot. A blaring fire alarm has forced an evacuation of the entire office building, interrupting her Wednesday afternoon. Flanked by her gossipy coworker Sophia and awkward coworker Chris, Lillian is waiting out what everyone assumes is just another false alarm caused by burnt popcorn. The group happens to be gathered right next to the side exit of the company's private employee gym. Unbeknownst to Lillian, the fire marshal is about to force open the gym doors, and her 40-year-old coworker, Will—whom she regularly flirts with and manipulates for fun—is currently inside, scrambling to evacuate mid-shower with nothing but a towel.