小組的頭是女DS桑德拉普爾曼，既然是和舊事有關，索性就招聘了3個退休偵探：傑克把死去的愛妻埋在後院每天和她聊天，蓋里年輕時有名的花心如今要和三個前妻四個女兒共進晚餐，布萊恩是個強迫症、前酒徒和陰謀論者。標題取自一句老話：“You can't teach an old dog new tricks（老傢伙學不來新竅門）”。這幫老傢伙卻成功地在新時代用他們的經驗和技，那些疑難案件正中了看似過時的老竅門的道。

Anthology series based on true crime stories that usually are unsolved mysteries. Intertwining dramatizations and real interviews with the victims and witnesses.

A team of dedicated amateurs work on cases involving unidentified victims. After the police have given up, this group must first solve the puzzle of the victim's identity in order to then help catch the killer. They work to give the deceased back their names, lest they become—The Forgotten.

From Executive Producer Dick Wolf, this true crime investigative series follows veteran prosecutor Kelly Siegler, and her rotating team of seasoned detectives, as they travel to small towns across the country and help local law-enforcement agencies dig into unsolved homicide cases that have lingered for years without answers or justice for the victims due to lack of funding and proper forensic technology.

Marvin Flute may be the greatest detective ever to catch a cannibal clown or correctly identify a mid-century modern armoire. But there’s one mystery he still can’t crack — his family. Now that he's back in Grimsburg, a town where everyone has a secret or three, Flute will follow every lead he’s got to redeem himself with the ex-wife he never stopped loving, even if it means hanging out with the son he never bothered to get to know.

搜查二系是警視廳裡備受冷落的所在，雖說頂著“專門負責處理久而未决的案件”的頭銜，其實部門裏的人都在混日子。直到有一天，東大高材生柴田純（中谷美紀飾）加入，柴田純具有罕見的運算和分析能力，破案的過程可謂驚心動魄，但另一方面，她是個非常單純的生活白痴，同事真山徹（渡部篤郎飾）是她的拍檔兼保姆，照顧著脫線的柴田。

真山的身上背負著一個沉重的過去，7年前，妹妹被輪暴，可是凶手始終沒抓到，柴田開始重新調查這一事件，却發現過去的種種混雜交織在一起，怎麽也撥不開這層迷霧……

Explore compelling cases that have gone cold for years, chronicling the journeys of the detectives who reopened them. The detectives relive the events of the crimes, reveal new twists and startling revelations, relying on breakthroughs in forensic technology and the influence of social media to help crack these cases.

During the traditional carnival celebrations, the dead body of a young girl is found near the small town of Bellinzona, in Southern Switzerland. The officers engaged in the case find themselves investigating crimes rooted in a past full of shadows.

Former Rhode Island police Sgt. Derrick Levasseur and forensic psychologist Kris Mohandie answer the pleas of desperate families and investigate murder cases that have officially gone cold.

A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.

In May 2007, three-year-old Madeleine McCann vanished from a holiday resort in Portugal. Now, German police believe they know who is responsible for the crime. Interviews with investigative journalists explore this new suspect.

Follow documentarians Joshua Zeman and Rachel Mills as they investigate one of the most bizarre unsolved serial killer cases of our time – the deaths of ten sex workers discovered on Gilgo Beach, Long Island.

When 15-year-old Jennifer Pandos went missing in 1987, her parents told everyone she ran away. Decades later, her brother Stephen begins a relentless odyssey in search of the truth. His investigation into the case threatens to destroy his family as he becomes strongly convinced that his parents are both implicated in the crime. As time passes, more threads unravel and new evidence comes to light, Stephen starts to question everything he has come to believe.

While detectives search for clues among the living, veteran Dauphin County, PA, coroner Graham Hetrick uncovers secrets of the dead. Each episode features a stylized re-enactment of a compelling homicide case taken directly from Hetrick's files. As viewers are led through a series of twists and turns, Hetrick peels back the layers of the investigation to reveal how the murder happened and who is to blame.

Unforgettable cases, featuring dedicated homicide detectives and forensic scientists to hunt down the perpetrators. Crime Stoppers is an 8-time Emmy award-winning program that exposes horrifying, unsolved homicide and kidnapping cases across the United States. The crime stories go behind the headlines to reveal compelling insights with reenactments, narrated by the detectives and victims' families to and involve the viewer to ensure justice is served.

Podcaster Bob Ruff reexamines the 1993 murders of 8-year-old boys Stevie Branch, Michael Moore and Christopher Byers, using new technology and investigative insights in the hope of uncovering new information for the victims' families.

Clemente is joined by Scotland Yard behavioral analyst Laura Richards. Together, and with the aid of several others involved in the original case, they will try and solve the mystery of Ramsey’s death “once and for all.”