Cast
Gadgets
Plot
Part 1
Kogoro appears in a commercial to promote white chocolate for White Day and is invited to a chocolate company's party. Kogoro, Ran, and Conan attend and are introduced to the company presidents, Taruto Urai and his wife Hoshie Urai. During the party, Taruto collapses. At first thought to be one of his practical jokes, Conan quickly notices that Taruto has died from cyanide poisoning.
| Murder
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| Location:
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Haido City Hotel
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| Victim:
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Taruto Urai
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| Cause of death:
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Cyanide poisoning
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| Suspects:
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Hoshie Urai
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| Taruto Urai collapsed on the floor during the White day party.
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Inspector Megure and his officers are called to investigate the death. The investigation leads Hoshie to be the prime suspect. As she is taken away to be searched, Hoshie trips and falls on a table causing many lemon tea glasses to shatter. Meanwhile, evidence of a medicinal wafer containing poison is found in Urai's mouth, suggesting suicide.
Part 2
Despite all appearing to be a suicide case, Conan is certain that Hoshie is the culprit and investigates on how she delivered the poison to her husband, finally finding several pieces of critical evidence and exposing her.
People
Resolution
Conan discovers that the burn marks on Hoshie's napkin indicate that cyanide was on the napkin and the poison was placed on a lemon slice. Conan elaborately explains how Taruto was famously known to hate sour things, and had planned to surprise his guest by eating sour food with the use of synsepalum dulcificum, which would temporarily reorganize his taste buds to accept sour food as sweet. Upon testing if the synsepalum dulcificum was still in effect, Taruto ate the poisoned lemon slice. While down on the ground after her "accidental" stumble, Hoshie took the lemon and placed the medicinal wafer in her husband's mouth and hid the lemon slice among the others during her fall. Conan concludes that Hoshie's fingerprint and Taruto's saliva should be on the poisoned lemon slice.
When confronted with the facts, Hoshie confesses, revealing her motive is revenge for her boyfriend who had started his confectionery apprenticeship along with her in Taruto's firm. During a competition, her boyfriend was clearly considered the aspiring winner because of his outstanding sour confections, but Taruto, who had favored Hoshie, decided to push him out of the race by claiming that his confections were way too sour. Devastated by this fake assessment, the boy had committed suicide; Taruto's subsequent distaste for sour things resulted from his panging conscience for inadvertently having caused his apprentice's death. His guilt came to daylight after Hoshie had recently fed him a sour cake, whereupon Taruto had collapsed and told everything.
On the way home, Ran is visibly saddened since she thinks she is the only one of her acquaintances not to have received a White Day gift, but is cheered up when she discovers white throat lozenge from a postage left by Shinichi.
See also
