The plot is essentially a re-make of “Midnight Angel/The Justice Women.” Yukari plays HK Police Inspector Shum Ling. When a shootout goes wrong, one of her men, Ye Jin, is injured. He’s engaged to her sister, Tong, and Shum Ling must break the news of his death to Tong while she’s planning her wedding. She blames Ling for Jin’s death, and angrily rejects her. When Ling’s investigation fails to yield progress, Tong goes undercover as a masked vigilante.