Complex sentence: In the meantime, Cortner brings figure model Doris Powell to his residence under the pretense of studying her scarred face for a promised plastic surgery operation, and, drugging her drink so that she loses consciousness, carries her down to the laboratory.
Split into simpler sentences: In the meantime, Cortner brings figure model Doris Powell to his residence under the pretense of studying her scarred face for a promised plastic surgery operation. Drugging her drink so that she loses consciousness, he carries her down to the laboratory.