Season 1

01 Episode 1 Episode 111th April 2014 Mu-yeom who became a detective for his father, receives news like a nightmare. 02 Episode 2 Episode 212th April 2014 Hearing something suspicious about the body of a murder case, Mu-yeom rushes to the crime scene. 03 Episode 3 Episode 325th April 2014 It's reported that the first case is the act of Gabdong and there will be a second case of murder. 04 Episode 4 Episode 426th April 2014 Mu-yeom is arrested as a criminal, and Yang suggests to compare the DNA of Gabdong and Mu-yeom. 05 Episode 5 Episode 52nd May 2014 Chief Yang meets Maria and thinks of a girl he met at the scene for a case from a while ago. 06 Episode 6 Episode 63rd May 2014 Mu-yeom suspects Tae-oh as Gabdong. Tae-oh lets out the story of his dead father to Maria. 07 Episode 7 Episode 79th May 2014 The civilians blast anger and attack the police for failing at preventing the fourth case. 08 Episode 8 Episode 810th May 2014 Mu-yeom kidnaps Ji-ul and tracks down Tae-oh, with the predicted date for a fifth case approaching. 09 Episode 9 Episode 916th May 2014 After finding a corpse, Mu-yeom runs at Tae-oh, and Maria witnesses something shocking. 10 Episode 10 Episode 1017th May 2014 A phone call rings from the real Gabdong. Mu-yeom finally gets to know the true identity of Gabdong. 11 Episode 11 Episode 1123rd May 2014 Gabdong is finally caught. Mu-yeom starts the interrogation and goes to get his shut mouth talking. 12 Episode 12 Episode 1224th May 2014 The plane the murder happened at, which Tae-oh was in, makes a flyback. 13 Episode 13 Episode 1330th May 2014 Tae-oh confesses his crimes, and Maria is shocked after finding out that Gabdong's probably dead. 14 Episode 14 Episode 1431st May 2014 After finishing the montage, Maria turns the young Gabdong montage into Gabdong of the present. 15 Episode 15 Episode 156th June 2014 Mu-yeom and Tae-oh, neither one of them slows down and races to the end of the cliff. 16 Episode 16 Episode 167th June 2014 Mu-yeom interrogates to prove Do-hyeok as Gabdong. He gets closer to the secret of the Murder case. 17 Episode 17 Episode 1713th June 2014 While searching Do-hyeok's house, Mu-yeom finds a suspicious picture frame of the Eiffel Tower. 18 Episode 18 Episode 1814th June 2014 Tae-oh starts a deal between Do-hyeok and Maria. Mu-yeom notices and makes the two Gabdong gather. 19 Episode 19 Episode 1920th June 2014 A gunshot rings at the pool Mu-yeom and Do-hyeok are at, and someone falls bleeding. 20 Episode 20 Episode 2021st June 2014 The trial of the two Gabdong finishes, with hard choices to make, the two fall into a great dilemma.