The Three Law Masters, Ye Fan, encounter He Lan, a dismissed forensic investigator. They discover He Lan's exceptional skills in forensic examination, which help uncover breakthroughs in cases. With He Lan's assistance, Ye Fan uncovers the truth behind the cases, and the two develop feelings for each other while working together as partners.

Set in the republican era, it revolves around the Jiu Long Uniform Embroidered Guards who unravel shocking cases, and discover the secret within the Nine Palace Treasure which is the catalyst to a huge conspiracy.

Yoko Moriguchi stars as a woman who was previously a successful editor at a major publisher. One day, her fiance suddenly disappeared, and an embezzlement incident later led her to lose her job. She ended up as the manager of Club Indigo, an unusual host club in Shibuya. With various incidents happening around the club, she and her hosts work together like a team of amateur detectives to solve the cases.

Joe, the stunt man of famous actor Tong, happened to meet Ming. Having developed a deep relationship, Joe didn't realise that Ming had always seen him as Tong's replacement. When the truth is revealed, Joe has to take work on a foreign set where an accident takes his life. When he wakes, Joe's in the body of a young man likewise named Joe who'd met with an accident on the same day. With help, he's soon living the same life as he was before—with the same people—and he meets Ming once more. In this life, Ming wants Joe back at his side as before and Joe doesn't know why. Ming, who's kept all memories of the old Joe, tries to find the truth about Joe's continued life in order to return Joe to his side and give him the explanation he never had the chance to.

Fuenglada studies at a boarding school and her father lives with his new wife Soithong and stepdaughter Soisoun. One day on the way to see Fuenglada, her father had an accident with Taen's car and passes away. Taen is a rich widower with two children and lives with his brother Tai. On knowing that Soithong is trying to sell Fuenglada to an old Chinese man, he offers to marry her himself and thus begins their marriage life. Path to a peaceful love is not easy with Tai being suspicious of Fuenglada's family and Soithong trying to make Soun closer to Taen.

When Keisuke Nakamura (Kazuya Kamenashi) was a high school student, his mother was accused of killing a girl and then his mother committed suicide. 12 years later, Keisuke Nakamura tries to find the girl's real killer and also take revenge upon those responsible for his mother's suicide. He targets people from the media who covered the case and he crosses paths with sisters who hold a key to what happened. Keisuke Nakamura falls in love with one of the sisters.

The Kingdom Night Club “mamasan” Sa Ching Ha and her girls Shek Wai King, Man Nga Lun, Kong Kit Yee and Yue Hau Hau get along well. Each of the quintet has her own reasons for playing the role of midnight lady. But they all have certain issues in their romantic relationships.

After sacrificing everything for her boyfriend, Dave, Nga Lun realizes she has been scammed. Wiseguy Cheuk Chi Fei wants to help her get out of this mess. However, their relationship becomes complicated due to Wai King’s presence.

Kit Yee has to make a choice between playboy Marco Hui and her old schoolmate Wong Tsun Kui. Hau Hau is messed up because of some freeloader. Ching Ha keeps waiting for her husband, Lee Ching Lung, to be released from prison.

However… When nightclub people engage in power struggles, they do not hesitate to use dirty tricks to overpower their opponents. Moreover, everywhere is triad territory, and danger lurks around every corner in this place of indulgence and decadence.