Kogoro Mori’s high school friend is getting married, but is suspected of foul play when his fiancée perishes in a car explosion! It’s up to Conan to prove him innocent, but there is a slight problem in the form of Toru Amuro—-the new part-timer at Café Poirot whom Conan suspects is an agent for the Black Organization! Later, Mori, Ran and Conan are invited to Sonoko’s summer mansion for tennis training, and Amuro is roped in to be Sonoko’s coach! Can Conan unravel a locked room murder case when he knows the enemy might be watching? The enigmatic man puts our hero to the test in this two-part special!