上鎖的房間

The puzzle of the locked room is so compelling — I wonder what inspired the author to focus on this classic trope and how they kept the suspense tight.

The detectives' personal struggles made the investigation feel more real. I'm curious if this was a deliberate choice to explore moral ambiguity.

Some parts felt tense and fast-moving, while others were more contemplative. Was this balance intentional to build suspense?