When Monk goes to his firehouse to get his smoke detectors inspected, the crew is quickly called away to a fatal house fire in which a young woman is killed. Minutes later, a mysterious intruder walks into the firehouse, lethally bludgeons a veteran fireman, blinds Monk with cleaning acid, then escapes. Despite Monk losing his eyesight, Stottlemeyer coaxes him to continue investigating, and Monk s