expression, noun
mystery due to conflicting accounts; unknown truth; in a grove (literal)
Idiomatic phrase from Akutagawa Ryūnosuke's short story 'In a Grove' (藪の中). Used when conflicting testimonies make the truth unknowable. The literal meaning 'in a grove' is rarely used outside the title.
この事件はまさに藪の中だ。
This case is truly a mystery with conflicting accounts.
目撃者の話が食い違っていて、何が真実か藪の中だ。
The witnesses' stories contradict each other; the truth is unknown.