As Ran, Sonoko, and Sera try on swim suits, Conan wonders through the department store and overhears a lady accosting the other people near her dressing room. After Conan leaves, he later hears a scream from that area. The rude woman turned up dead.

Conan and the Detective Boys get stranded in the rain and take shelter in a nearby mansion. Upon entering, it is learned the master of the house's wife died several months ago and he believes he is seeing her ghost!