When Ah Beng water filter salesman Kenth Chu (played by Alvin Wong) and Banana ghost tweet writer Sharon Tong (played by Dawn Cheong) first meet, it's after they've spilled milk tea and coffee on each other respectively during the morning elevator rush-hour. In the truest meaning of the Cantonese proverb "Dangerous enemies meet again in narrow streets" Kenth and Sharon once again find their paths crossing at the end of the day as they both enter the same service elevator. Hilarity ensues when the elevator malfunctions, leaving them trapped with each other, and at the mercy of a gonzo security guard - the Voice of God - who is their only lifeline to the outside world.