Heartbeat 100 1987 A writer Maggie Cheung decides to visit the countryside with her sister Bonnie Law and friend Fong Liu so she could work on her new novel There, they stumble upon a village full of oddball characters and a murder that allegedly took place in their neighbors house As a result, the three are determined to poke around the premises for clues and weed out the killer However, a police detective Mark Cheng is weary of the witnesses testimony that a murder occurred in such a small, quiet town