Humans, however, are subject to complex inner pain that includes fear, guilt, shame, grief, rage and hopelessness.

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The FTC's probe is still at an early stage, with investigators seeking to learn the inner workings of a complex business.

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Or narrate the inner workings of a complex machine?

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In the course of the movie, these conversations between the trainee and the psychiatrist turn into edgy, complex transactions in which she reveals pieces of her inner life in return for his hints on how to find the killer.

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The procedure - known as peritonectomy and hyperthermic intraperitoneal chemotherapy - requires a patient to undergo a complex surgical procedure and involves the removal of the membrane that lines the inner wall of the abdomen and all visible recurrent cancer.

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