Season 1

Tackling different mysteries in each episode of this game show, seven sleuths get closer to solving the biggest one of all: What happened to Project D?

1. 

   1. Forewarned Murder

   2018-05-04 · 98m

   A man named "M" invites seven people to a murder game party. Among the eight in the room, one will become a victim, and another the culprit.

2. 

   2. Treasure Island

   2018-05-04 · 84m

   Recognized for their performance, the detectives report to Jeju Island, where their first client asks them to participate in a treasure hunt.

3. 

   3. Kwang-soo, a Murderer

   2018-05-11 · 77m

   While enjoying their break on Jeju Island, the detectives get a shocking call from K, who says Kwang-soo is a prime murder suspect and is on the run.

4. 

   4. Messages from the Dead

   2018-05-11 · 75m

   Jong-min comes across a diary of a dead teen girl who was possibly murdered. To find the truth, he gathers the detectives at the school she attended.

5. 

   5. The Last Vampire

   2018-05-18 · 86m

   A woman turns up dead on an island off the coast of Incheon. The detectives learn that a centuries-old legend of a vampire has haunted the islanders.

6. 

   6. Battle of the Detectives

   2018-05-18 · 86m

   To find the missing self-portrait of a recently deceased painter, two rival curators at a Seoul art museum each commission a team of detectives.

7. 

   7. The Vanished Magician

   2018-05-25 · 86m

   Without any cases to solve, the detectives enjoy watching a magic show rehearsal -- until the show's star magician suddenly disappears without a trace.

8. 

   8. The Mysterious Gentleman

   2018-05-25 · 86m

   A man who introduces himself as K's old friend offers the detectives lavish pay and a chance to partake in a special mission -- but there's a catch.

9. 

   9. Operation: Criminal Transport

   2018-06-01 · 83m

   A culprit asks specifically for the detectives to escort him to the police station. In exchange, he promises to tell them everything they want to know.

10. 

    10. The Disappearance of K

    2018-06-01 · 78m

    The detectives receive a text message from K that was written three months ago. It asks them to come to Incheon, where their final test awaits.