Season 1

Uncover the truth behind historical events that took place in Korean apartments! What secret does Woosang Apartment hold? Six residents are summoned to the apartment in 1998 and are led somewhere unknown by strange soun…

A strange van follows a girl at night. Is the quest to find a missing girl? Strange sounds are heard outside, and a dangerous chase unfolds. What's the story behind the shocking true event? JENNIE uses her deductive ski…

In 1999, a bazaar opens inside an apartment complex, complete with a host of delicious Korean food. Time to chow down. A scream is heard in the distance, and the residents hit the jackpot! Then the apartment suddenly ch…

The residents are joined by their first guest, Yeonjun of TXT! They suddenly get dragged away blindfolded. Uncover the secret of the Maple Leaf Apartment set against a real-life 1970s incident. A bingo board appears and…

The fifth case takes place in 1991. Nostalgic snacks and catchphrases are summoned as the members chat about the good old days. An ambulance and a police car appear at the apartment. People start foaming at the mouth an…

Back to the 1980s. The residents get invited to an old-timey tteokbokki cafe. The cheesy comments of the familiar-looking DJ Woo-sik and nostalgic songs liven up the mood! A gang chases a mysterious man, and a dangerous…

The members visit a nearby university and enjoy the clubs, cafeteria, and even an exciting flash mob. Suddenly, the six new students are startled by a surprising disturbance! Animal noises fill the air as the teams comp…

A high school beside the apartment welcomes six transfer students! Both the actual incident and the scale of the episode are on another level! A group of boys fight over a girl in front of the new students. As strange e…