The Detective Boys are cooking curry at Agasa's home while Conan is asked to appraise an antique vase. The kids later leave to buy curry ingredient and return to find Agasa unconscious and Ayumi missing. The kidnappers send a message demanding them to look for a cat in return for Ayumi. The kidnappers send a second message saying they found their cat and detailing Ayumi's location. After rescuing Ayumi, who was rolled up in Agasa's antique rug, the Detective Boys attempt to deduce the kidnappers' motive.