Sergeant John Mackenzie is flying to Russia from the United States under the professional exchange program. The American not only becomes the partner of investigator Vasilisa Vikhreva, but also temporarily settles in her apartment. It's hard for John and Vasilisa to work together — the difference in characters and mentalities affects. But the successful results of joint investigations convince the leadership to create a special department around them to combat crimes committed by foreigners and against foreigners in Russia. Unraveling one case after another, the partners find themselves embroiled in an international espionage game around a major scientific discovery.
The series concerns the everyday lives of the operatives of the "murder" department of the Petrovsky District Department of Internal Affairs of St. Petersburg.
A mother desperate for the disappearance of her son and facing the ineffectiveness of justice to find him, decides to take the reins of the case with his own hands and goes to the mysterious town where his son was last seen.
She's an astrologer, psychic, empath, fashion icon, and White Claw enthusiast. But above all, she's the detective leading an investigation into the mysterious town of Nettlebrook.
A criminal psychologist Awantika Sinha, profiles a serial killer Shivam Bhargav. As she proceeds, she realises that she is caught up in the middle of the ultimate quest of right and wrong.
Saeki Shuichi was a detective, but he quit his job. He now works at a detective agency. One day, a couple asks the detective agency to find a man named Sakagami. The man killed the couple's son and served at a youth detention center. Kogure Masato is the director of the detective agency. He tells Shuichi to work on the case. Shuichi is also part of a victim's family. When he was a child, his older sister was murdered. While Shuichi watches Sakagami, the couple asks him to find some materials which will allow them to forgive Sakagami or not.
Marco Mur is an attractive, successful businessman, but a trauma from his past prevents him from getting emotionally involved with women. Instead, he has intimate encounters in a club where no one knows anyone else. But his past returns and now Marco must face it and all the other conflicts of his life.
A group of university students find themselves the target of a curse killing them one by one in a manner related to their zodiac sign. Their quest to rescue themselves take them to the origin of this curse: Ancient Egypt.
A story that tackles the life experience and mental issues that plague the PTU officers from the perspective of a former undercover cop who returns to the force.
After successfully bringing down the triads, Gao Jiasheng (Raymond Lam) goes back to wearing the police badge and crosses paths with Sergeant He Huiling (Charlene Choi) and Team Leader Liu Jianhui (Alex Fong). The three have their share of misgivings, but learn to build trust and friendship through a series of dangerous missions.