Aoi is asked to pose as a woman in a red dress at a party in order to catch a man whose been slashing red dresses around town.  Ken goes as her date.  Natsumi and the Chief also go as a couple while Miyuki and Yoriko pose as waitresses.  They catch the man and Aoi lets Miyuki wear the dress for the rest of the evening.  She and Ken are hanging out but when he leaves for the restroom, the real perpetrator attacks Miyuki.