The story of a man named Yook Dong-sik who coincidentally witnesses a murder and picks up the killer's diary. While fleeing the scene, he gets into a car accident causes him to lose his memory. Due to the diary in his possession, he mistakenly believes that he is a psychopathic serial killer.
Max Liebermann, a student of Sigmund Freud, helps Detective Rheinhardt in the investigation of a series of disturbing murders around the grand cafes and opera houses of 1900s Vienna.
Tōko Kisaragi is a detective in the Investigation 1 Section 11 of the Tokyo Metropolitan Police Department. Her senior, Detective Hideaki Takano, has decided to move to the Public Security Bureau. Hideaki Takano's transfer will be carried out in one week. During this time, a murder takes place. A wealthy man is found dead in his home. His throat has been cut and a blue flower placed within the wound. Also, the victim's wife, Mayumi, is missing. A newspaper then receives an email from Kurasuta 16, professing themselves as the murderer. The email also implies the location of Mayumi. Since Detective Hideaki Takano is soon to transfer to the Public Security Bureau, Tōko Kisaragi feels more pressure and responsibility to solve the crime.
Yu-Hsuan lost her boyfriend Chuan-Sheng in plane accident. She then discovered Chuan-Sheng and a girl look alike Yu-Hsuan both appeared in a photo taken in 1998. Accidentally, she had backed to 1998 and met a boy looked alike Chuan-Sheng.
Bjørn investigates the killing of his daughter. People around him believe she might have committed suicide, but he doesn't accept that. Both the stakes and the suspense rise relentlessly as Bjørn inches closer to the truth.
A man walking the thin line between good and evil is an ingenious criminal. Yet he abides by the law and serves time in prison. One day before release, his ex-girlfriend who also happens to be his biggest rival runs into serious trouble, leaving him no choice but to escape in order to save her.
The story originates in the Golden Triangle where drug trade is proliferate. Xia Tian gambles with his life against a notorious drug lord and wins big. News of Xia Tian's misdeeds reach Zhang Li who works for the Interpol. As it turns out, she is Xia Tian's ex-girlfriend and the apple of his eye. Despite being cop and bandit, the two were lovers who relished engaging in a game of cat and mouse.
Aya is a young female model that has always had a recurring dream: She always dreams of seeing her mother kill someone in a house, which is located on the island she used to live in when she was a child. These dreams cause insomnia, eventually leading up to chronic insomnia to the point that she is confused and begins to separate reality and dreams.
"Detective College", as a derivative of the fifth season of "Who's the Murderer", is a star reasoning variety show where selected detective assistants launched by Mango TV. The star guests determine the number of advances by rolling the dice on the checkerboard. When the game is triggered, the corresponding game needs to be completed. The first guest to reach the end becomes the current No.1. The program combines the form of team battles and individual battles to inspire the star guests ’IQ and Contest of logical ability. No. 1 selected in the show will appear on the scene of the fifth season of "Who's the Murderer". "Detective College" consists of Pu Yixing, Zhou Junwei, Tang Jiuzhou, Qi Sijun, Shi Kai, Guo Wentao, Shao Mingming, etc., and premiered on November 3, 2019.
Heart-wrenching, personal stories of unsolved missing cases and unexplained deaths that continue to baffle investigators and horrify those left behind. Each mystery is brought to life by unravelling the evidence, compelling viewers to hunt for answers as police continue to seek the public's help.