A passenger vanishes mid-flight, forcing an emergency turnback! But how did the missing passenger end up dead inside their own suitcase?

A victim murdered mid-flight is found inside a suitcase in the cargo hold?! The mysteries of the airport murder case are finally unveiled!

A body is discovered in a gruesome state inside a rundown goshiwon (tiny studio apartment). A victim murdered during a live broadcast?! What is the identity of this eerie, suspicious "Juk-Goshiwon"?

The shocking reality of the goshiwon and the tangled secrets of its residents are slowly brought to light! Did "Juk-Goshiwon" have it all planned out?!

The suspect in the murder of a presidential candidate's child is killed right inside a sacred courtroom! Is this a judgment of justice? Or a brutal murder?

The ugly true colors of the suspects and a massive hidden mastermind are gradually exposed! Who is the real culprit who murdered the victim in the courtroom?

Gyeongseong, 1945. The cult leader of "Seonseon-gyo" burns to death right in front of a crowd! What is the hidden truth behind the cult leader's death?

The ugly reality of Seonseon-gyo is exposed down to the last detail! Find the real culprit who killed the cult leader amidst endless debates over the truth and growing suspicion!

The ugly true colors of the Pungmu Group are thoroughly exposed! Right before a scheduled press conference... the chairman of Pungmu Group is found dead?

The death of the Pungmu chairman... and was everything actually "according to plan"? The truth behind an affair that defies all imagination is revealed!