Hong Kong movie

PK and PS are best friends and both work as hookers. PS owes a gambling debt to her pimp, and PK asks her boyfriend, Lung, to intervene, unaware that he’s an undercover cop.

Two mismatched Hong Kong police detectives, Yau and Yue, were assigned to work undercover as a live-in couple to track down a serial killer accused of murdering adulterers. In the meantime, Yau (Anthony Chan) is coping with his girlfriend having left him, and Yue (Sandra Ng) is losing her boyfriend to a college girlfriend of his.

When 16th-century Ming guard Fong Sau-Ching sets out to capture vicious rapist Fung San, both men end up falling into a glacier to be frozen in time. Thawed out by scientists over 300 years later, the confused guard must learn to cope with the modern world and continue in his quest to vanquish his opponent.