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His agency Bel Actors Entertainment confirmed to TV Daily on April 11, "Kwon Sang Woo will star as the lead role in the film 'Detective'." The actor had a busy year in 2013 with dramas 'Yawang' ('Queen of Ambition') and 'Medical Top Team', and 'Detective' marks his return to movies after three years since his last film 'Pained'.

'Detective' portrays the story of a library owner obsessed with mystery fiction who coincidentally ends up digging up a murder incident involving his friends. The movie will begin crank-in in July.