The story line is strong and smooth, keeping many secrets while moving forward.The most beautiful thing is that it looks like waves of real incidents, no creation of dramatic turns, cheesy or cringeworthy repetitions. Looking like real detectives life problems having shades of mystery, no boasting about unreal or illusionary powers. Simple incidents are happening just like real life leads to smooth solution of problem. This drama gives you energy, energy to do hard work, to be honest with society,with your work and with your life. Be enthusiastic and be yourself. The character of Jang Seung-Jo is quite strong and interesting who solves riddles with patience, smile and calmness. It is a kind of different drama from routinely same stories. Girl reporter is passionate , enthusiastic and smart. Son hyun joo is doing a good job both in his personal and professional life.He is legend among detectives.He puts himself and his career on stake to prove innocence of murder suspect who was falsely accused.Once he made up his mind, he must do it. His saying is just a lit"If I were afraid of people with knives,I would've quit being a detective long time ago." Bond between him and Seung Jo is full of care. They show they don't care about each other but indeed they care a lot. Just detectives stuff!! A worth watching drama indeed.Superb..... Superb..... Direction, story, portraying scenes, everything is above line...... Amazing!!