Seventeen people board a Hong Kong minibus going from Mong Kok to Tai Po: driver Suet; Yau Tsi-chi and Yuki, who are visiting their respective dates; Fat, an aging gangster; Mook Sau-ying, a fortune-telling insurance salesperson; Shun, a computer technician; Pat and Bobby, a married couple; Blind Fai, a drug addict; Auyeung Wai, a music store salesperson; Lavina, a quiet, buck-toothed woman; Airplane and Glu-Stick, rowdy boys; and university students Tsing, Peter, Dawg, and Hung. As the minibus enters a tunnel, Fat notices the traffic seemingly disappear, and several other passengers remark upon how quiet the streets have become. The university students leave on the first stop, and one immediately becomes ill.