Case closed
Somebody closed Death at the Gilded Lily. Your turn.
They found the contradiction without being told where it was. Open the same case and see whether your first three questions get you there.

Noir · 1925, a basement speakeasy on Chicago's South Side
Death at the Gilded Lily
Chicago, 1925. The Gilded Lily's owner is dead behind his own bar — poisoned during the midnight show, while the band played on.
3 suspects · easy · 25–40 min · free
Nothing on this page gives anything away — it knows whether the case was closed and nothing about how.