Set in the early Republican era, the story follows a policeman with a dual personality who lifts the veil on a series of strange cases.The year is 1911 and China is on the eve of revolution. A series of connected homicides occurs in rural Fuyuan County, a prefecture on the outskirts of Tianjin. Tianjin detective Tan Bodun and his team head there to solve the case. After peeling back the layers of the mystery, he uncovers a shocking secret about Fuyuan County and a struggle between justice and evil begins.

A BBC anthology series featuring adaptations of detective stories over 45 episodes in three seasons that ran from 1964 to 1969. As with many BBC programmes made before the early 1970s, many of its episodes no longer exist. Of the eighteen episodes from the first season only twelve are currently known to exist; likewise six of the sixteen editions from the second run are considered lost, and just one of the final ten survives in the archives.

After being rejected from the police college, a mannerly man travels to Bangkok where he and an energetic distant relative must solve a murder case.

A private detective is drawn into a complex murder mystery when he is hired to track down a missing young woman.

Gui Xiang is super clever girl with low EQ. She investigates into a murder case in competition with a young police detective.

An American anthology police detective series utilizing multiple timelines in which investigations seem to unearth personal and professional secrets of those involved, both within or outside the law.

Private detective Yoon San gets turned into a vampire one day while he was out on a duty. As he meets various clients and cracks cases for them, he also uncovers the mystery surrounding him as well as the secrets from his past.

Hong Gil-dong is an infallible private detective with an exceptional memory and quirky personality. While chasing the only target he failed to find, he gets entangled in a much bigger conspiracy than he bargained for.

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A brilliant detective is forced into early retirement after losing eyesight. Making ends meet by solving cold cases for reward money, he teams up with a rookie lady inspector to solve a case from her personal past.