"It's going nowhere" "The(or their) dialogue gets nowhere." webで「らちがあかない」を検索してみたところ、他にも以下のような例がありました。 -- remain unsettled make no progress -- However, please note it is the idiom not merely describing the situation but also expressing weariness. I guess from the idiom that the policeman feels frustrated because he has been struggling to get some information from the man but he has made no progress so far.

It's one of Japanese common idiomatic expression, and yes,it means make no progress. So in this situation the man keeps repeating the same thing"「邪魔すんじゃねえ、畜生」", and never answeres the policeman's questions. Now We know the conversation is not getting anywhere. 加油！！

言葉の内容は辞書の解説どおりです。その描写の場合、「男は横になったまま『邪魔すんじゃねぇ、畜生』と言い、警官の質問に対して一切答えないため、まったく話が先にすすまない」と書き換えられます。 私が翻訳するなら、以下のようにします。 「a policeman was kneeling down beside the man and asked,"What's your name? Where you live?" The man was lying and said,"don't disturb, idiot." He didn't answer the policeman's question at all」 私はまだ英語を勉強中の身なので、十分表現しきれていないかもしれません。