Complex sentence: The Don discovers him there and invites him to his party, where Michael across Sameer and Suhani and everyone else that he had encountered over the night as well as Maggie, who as it turned out was offered the job by the Don.
Split into simpler sentences: The Don discovers him there and invites him to his party. There, Michael across Sameer and Suhani and everyone else that he had encountered over the night including Maggie, who as it turned out was offered the job by the Don.