Briefly summarize the complications that Mr. Kraler brings to the members of the Annex. How does this connect back to Act 1?

Mr. Kraler was talking to Mr. frank about him being sick when he asked Mr. Frank to go speak with him downstairs. Margot refused to let them go because she knew it was bad news and they should all hear. Mr. Kraler was hesitant because of the kids but he said there was a man who possibly knew about Mr. Frank hiding up and was blackmailing Mr. Kraler. This causes more complications with them hiding abd it connects to Act 1 with the theif they heard downstairs.