EPISODE CONTEXT

This episode follows the standalone 'Deduction Showdown in the Haunted Hotel' arc and marks the beginning of a multi-part story that continues directly into Episode 649, 'Detective Agency Confinement Case (Sniping),' where the danger escalates significantly. As a canon entry at episode 648, it represents one of those periodic high-intensity arcs that break up the procedural rhythm and raise the personal stakes for the core cast. Viewers should treat this as a must-watch entry point — skipping the first half of a two-parter this action-driven would undercut the payoff.