An adverbial phrase meaning 'in truth' or 'actually', used to introduce the real situation or someone's true feelings.
本当のところ、彼はその仕事に乗り気ではなかった。
To be honest, he wasn't enthusiastic about that job.
本当のところは私にも分からない。
The truth is, I don't know either.
本当のところ、彼女はもう行きたくないと言っているらしい。
Apparently, in reality she says she doesn't want to go anymore.
As a noun phrase, it refers to the real facts or the truth behind something — the actual story.
本当のところを教えてください。
Please tell me the real story.
報告書と本当のところはだいぶ違った。
The report and the actual situation were quite different.
彼の言葉と本当のところのギャップに驚いた。
I was surprised by the gap between what he said and the real situation.