Flex X Cop is that rare breed of k-drama that strikes the right balance between action hero drama, intelligent plotting and the feelgood payoff of the positive relationships depicted in the police team. Our rich, shallow playboy transforms into an effective lawman with only a few hiccups along the way in convincing fashion.
The cast is inspired - Ahn Bo Hyun's star is clearly on the rise and deservedly so, his ability to convey drama, hilarity and moving emotion is impressive. He's clearly having a ball playing Jin Isoo and a second season has been confirmed.
Park Ji Hyun is as reliable as ever as the calm, dedicated detective and the adorable maknae + secondary romance works ok.
All round restraint for the mad stepmother storyline and the brother's arc is compelling viewing.
Re-watch value/10.