1937 Warsaw, Poland. The Jewish mafia rules the city. Head honcho is gangster socialist, Buddy Kaplica. His right-hand man, boxer, Jakub Szapiro who dreams of taking over Buddy's top spot as King of Warsaw.
Caitlin "Cat" Sullivan is an NYPD detective working in Brooklyn. After her driving privileges are suspended, she relies on Leo Romba, a highly skilled Brooklyn cab driver from France. Leo becomes Cat's driver and a consultant on her cases. While solving crimes with Leo, Cat is also running her own unauthorized investigation into the death of her father, an NYPD detective thought to have been executed by the Capella crime family. In doing so, she clashes with her boss, Captain Baker, and her ex-husband Gregg, who has picked up the case for the FBI.
When Puifai dies after a night of partying with friends, new police inspector Khamin and Captain Jade, adversaries, join forces to find out the truth behind her passing. The case, however, proves not to be as simple as it first appears. Will solving the case also spark an unexpected romance?
Eisuke Tameyori is a middle-aged private practice physician. He has the ability to diagnose someone's condition just by looking at their appearance. He is also able to recognize people who will commit crimes in the future by certain symptoms and tries to prevent them from committing those acts. He meets Detective Junichiro Hayase and they soon work together to solve cases.
Ryo Uzaki, aspiring to be a lawyer after his father's death, joins a law firm where the lawyers, driven by money or justice, actively seek out conflicts to start lawsuits.
Jung Seo Yeon happens to get 9.9 Billion won (U$D 9 Million) and she fights against the world. Jung Seo Yeon and her family suffered from violence by her father. She left their home and started a new life with an affectionate man, but her happy life ended. She struggles to look for happiness in her life. Kang Tae Woo is an ex-detective. He attempts to reveal the truth behind the death of his younger sibling.
A woman’s dead body is found in an apartment in Kokubunji, Tokyo. The decayed body seems like a half year has passed since its death and it is damaged by domestic cats that ate the body. The woman's death is thought to be a "lonely death" (someone died naturally without anyone noticing for a long period of time). Detective Ayano has doubts about that conclusion. The cats seemed like they were not house trained, which is odd for domestic cats. Detective Ayano wonders whether the cats were really owned by the dead woman. Detective Ayano then finds Suzuki Yoko’s bankbook in an empty fishbowl. It seems like the dead woman is 36-year-old Yoko.