Trapped in individual rooms filled with a variety of challenges, each detective tries to figure out how to escape.

The search for K's killer gets complicated when a series of dead bodies are found -- all with a mysterious QR code on them.

Hired by a client whose family jewels are in danger of being stolen by a nefarious thief, the detectives hurry to get to it first.

When a shaman needs help finding the scattered numbers of a winning lottery ticket, the detectives race against another team for a big reward.

The team welcomes a new intern, who leads them to a grisly case involving a divorced couple, their son, and a suspicious neighbor who lives next door.

While investigating a suicide, the detectives go to a spooky village, where mysterious things happen to young women -- and outsiders are not welcome.

The detectives split up when they're hired by three estranged brothers of a chaebol family -- all eager to find their late father's will.

The detectives have fun participating in a crime game show with a K-pop group -- until things get too real.

Hot on the Flower Killer's trail, the detectives follow a maze of clues from his home to his secret lair, where they learn a shocking truth.