For Bad Boys Only

For Bad Boys Only is an unconventional detective agency that specializes in reuniting clients with their first loves. King Chan runs the operation with partner Jack Shum, while King's sister Queen serves as the loyal employee. The team blends flirtatious charm with precision, setting the tone for the cases ahead.

Taiwanese tycoon Yung Wing-hing hires the agency to find his ex-lover, Koon Ching, a renowned female air force pilot. The case introduces the core mystery linking Koon Ching's identity to other women who resemble her. The request kickstarts a thread that will complicate everyone's loyalties.

A young man named Tin-ngai also seeks the agency's help to locate his missing girlfriend, Shadow. His case adds a personal stake to the investigators' roster. The pursuit overlaps with the Yung Wing-hing case as multiple women resemble Koon Ching.

King and Jack discover Koon Ching and Shadow look strikingly alike, foreshadowing a deeper mystery. An amnesiac girl named Eleven emerges, who also bears the same resemblance and memory gaps. The trio's resemblance sets the stage for identity twists and romantic entanglements.

Amid the search, King develops romantic feelings for Eleven, complicating his objectivity. The budding affection tests loyalties within the agency and the risks of pursuing a fragile identity. Eleven's situation becomes more personal as her past remains uncertain.

While pursuing clues about Eleven's true identity, King and Eleven are attacked by unknown assailants. The danger escalates until Eleven is captured by a group of gun-wielding mysterious men. The incident hints at a larger conspiracy surrounding her existence.

Tin-ngai locates Shadow, who has been disfigured since her disappearance. Her altered appearance intensifies the mystery behind the clones and the purpose of their creation. The emotional stakes rise as Tin-ngai's love for Shadow endures.

Japanese scientist Taro Sakamoto reveals his attempt to create a new pilot by injecting Shadow with DNA from Koon Ching. The experiment aims to replicate Koon Ching's skills but ends in a disfigured Shadow. The failed project introduces genetic clones and the ethics of manipulation.

Despite the volatile experiments, Tin-ngai vows to spend his life with Shadow, underscoring the power of love to withstand physical transformation. The bond contrasts with the agency's longing for identity and reunion. Shadow's fate remains intertwined with the human costs of the research.

King and Jack decide to rescue Eleven and infiltrate Sakamoto's fortified base. They prepare a stealthy approach, exploiting the base's security gaps. The mission marks a turning point as the investigators directly confront the mastermind behind the clones.

Inside Sakamoto's base, they discover dozens of clones identical to Eleven, each with different mutations and labeled by numbers. Eleven stands out as the only perfect experiment with no mutations. The clones' existence escalates the stakes and raises questions about identity and control.

Sakamoto manipulates Eleven, pushing her toward madness in an attempt to kill King and Jack. The mastermind orchestrates a grim finale as the true purpose of the clones is exposed. The confrontation sets the stage for a dramatic climactic clash.