Kogoro and Ai are shocked when they hear of a possible relationship between soccer player Ryusuke Higo and idol Yoko Okino. Managing to locate them at Higo's friends restaurant, but a murder of the owner occurs while they are all present.

The Detective Boys take shelter in a home during a big rain storm. Two men welcome them into the house, but are not familiar with it. Is it their house or is something else happening?