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The Best Seasons of Detectives: The Trade Secret

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Every season of Detectives: The Trade Secret ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Detectives: The Trade Secret!

The Best Seasons of Detectives: The Trade Secret

Yoo In-na, Defconn and a team of experts lead this journey into the world of private investigators, with re-creations of cases and tips for viewers.