Danny Lee is a retired cop investigating the murder of his wife, witnessed only by his son.
Social worker Sandy emigrated to Canada with her father when she was young. With the encouragement of her father, she decided to come back to Hong Kong to develop her career. Her father also has a mission to find his missing wife.
A group of teenagers stop at a service station after a leaving a disco. In a fight resulting from their inability to pay, the staff on duty are killed by the group, which leads to a desperate night of cat and mouse with the police.
A real murder case which was complicated by the ménage à trois relationship the victim had with the main suspects. As different witnesses narrated their conflicting stories, the case seemed set to lead to nowhere; especially when the real identity of the dead person was finally discovered.
