Two に with 行かれて

Question

Context:

Person A, has just left to look for persons B, and it would be bad if she met them. Person C comments on this saying:

まずいな。 今彼女にBたちの所に行かれては……！

There are two things that kinda confuse me. For one why is both A (彼女) and B marked with に. I'd think it would be used primarily as a location but here it's used with the subject/doer.

I guess it could indicate on which is いく being performed since it's passive.

Or, given 今 it might be be to make 今彼女 into an adverb of a kind. So it would be: "If she goes to Bs as she is now..."

Second thing is ては bit. I'm guessing て here is to chain into a outcome verb. So this is IF.

Answer 1

今彼女にBたちの所に行かれては

The first に marks the agent (doer) of the verb 行く. 彼女に行かれる is the suffering passive (迷惑の受身) form of 彼女が行く. Compare:

子供が泣いた vs (私が)子供に泣かれた
妻が先立つ vs (私が)妻に先立たれる

The second に marks the location/destination where 彼女 is going.

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Second thing is ては bit. I'm guessing て here is to chain into a outcome verb. So this is IF.

You're right that the ては means "if." 倒置 (Anastrophe) has occurred in your example. The original/normal word order should be:

今彼女にBたちの所に行かれてはまずいな。
"It's no good if she goes to B's place now."