Anata no Ban Desu

Married couple Tezuka Nana and Shota just moved into a new apartment building. Nana, then joins the neighborhood association meeting that night. At first, they just talk about trash duty, but the conversation turns sour when somebody expresses that they may hate someone so much to the point murdering that person.

The neighbors start to dig each other's feeling and end up making an arrangement where everyone should write on a ballot of paper the name of people he/she hate and wished to be dead. Each person will take ballot paper but they will not know who wrote the name.

It seems like a joke until the next day, the apartment manager fell off and died. His name is written on the ballot paper. Nana doesn't want to make speculations, but when the next body found, she starts suspecting...