Newlyweds Nana (Tomoyo Harada) and Shota (Kei Tanaka) move into a new apartment in the apartment. The happy and sweet couple is full of expectations for their new life. On the day of moving, the apartment will hold a residents' meeting. Nana lost to Shota in rock-paper-scissors, so she went alone. In addition to the president Sanae (Tae Kimura) and the manager Tokojima (Naoto Takenaka), there were 13 people including Tamiya (Katsuhisa Namase) and Kuroshima (Nanase Nishino) who attended the residents' meeting. During the chat, Tokojima's words "Everyone has a moment when they want to kill someone" made everyone hesitate but still talked about the person they wished he would die. Then the topic unexpectedly turned to "As long as you exchange the target of murder, you won't be caught." Tokojima suggested to everyone that everyone announce the person they want to kill. Everyone thought it was just a game, and without thinking much, they wrote the name of the person on the extra voting paper, and then drew a lot. This residents' meeting kicked off the prelude to the horror murder game that Nana and Shota are deeply involved in...!