On the night of a heavy rain, four detective gather at the house where a store manager was murdered. The four are given the task of staking out the house while social distancing due to coronavirus. The friendly senior detective with a junior high school student daughter is Iguchi. The wild detective whose only hobby is horse racing is Watanabe. The Kansai accent having detective is Imae. The serious detective is Kiyota. Knowing that their suspect, Ogino, has stopped updating his SNS since the murder, Iguchi, Watanabe, and Imae begin to start betting on where Ogino may be hiding. Iguchi's unknown past and Kiyota's unexpected background becomes clear.