There's been—
There will be a murder!
The Modernist Wing of a labyrinthine art gallery. The curator, face-down in a pool of their own blood. No weapon, no witnesses, four suspects.
Such an occurrence, naturally, will raise numerous questions—
Who did it?
What was the motive?
Where the hell is the lobby?
Why doesn't this stupid place print maps?
—but a brilliant Detective can answer all, when called to the case.