Nana and Shota are a newlywed couple and Nana is 15 years older than Shota. Nana works as a designer and Shota works as a gym trainer. They both enjoy mystery. The newlywed couple then move to an apartment and they attend a resident’s meeting there. Nana and Shota become involved in murder cases that take place at the apartment. Residents get murdered one by one. Some residents have a motive, but those suspects have an alibi. Because of this, an arrest has yet to be made.

Ryōsuke Sagara is an ordinary salaryman and he works for a mid-size shipping company. He is a good-natured person. His family consists of his wife Maho, high school student daughter and elementary school student son. Maho works part-time at a supermarket. They are a happy family, but Maho and their two children suddenly disappear. There are no clues about their disappearance. Ryōsuke gets the attention of the media and public. He tries to find the truth behind his family's disappearance with the help of his subordinate Mizuho Ninomiya at work.

One morning, students find their homeroom teacher Tokuyama Daigoro’s body on the floor of the classroom. A strange school life begins as the students work hard to hide the presence of their teacher's corpse in their classroom. Other teachers from the Academy, their homeroom teacher's wife, his mistress, police, and reporters... One-by-one they visit the classroom and the students face the risk of being discovered. Is it possible to continue to hide it?! And who was it who killed him?!

As science is growing ever closer to the taboo field of regenerative medicine, a mysterious new student named Maki Togawa begins attending the International Dolly Girls' College. Soon after, a series of strange and horrific events occur in and around the school, seemingly in the proximity of or due to new student Maki.

Ce drama met en scène les idoles du groupe féminin AKB48, cette fois-ci sur le thème de l'horreur. Chaque épisode met en scène une membre différente du groupe dans le rôle principal.