Top ten 10 Best detective investigation series, about drugs, murder and mysterious cases you should watch.
watch this video especially if you like solving puzzles, unpredictable mystery and genius agents, killing, went missing and so many cases.
These series include True detective, Sherlock, the wire, the sinner and more.
All these 10 series are based on detective investigation for either murder mystery or drug kingpins. Detective uses their brains to solve the cases.
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