For more than 20 years Professor Lewis Spitz has operated on conjoined twins. This moving and engaging film follows his final job at London's Great Ormond Street hospital, where he separated two little girls from Nigeria, and looks back on a career of agonising dilemmas - and the lives he has saved.

HEALTH Separating Twins 9.00pm BBC1
Professor Lewis Spitz has been separating conjoined twins for more than 20 years. This moving documentary observes him as he takes on his final case at the Great Ormond Street Hospital before he retires.
We follow the progress of two six-month-old Nigerian girls who are fused together at the breastbone and need to be separated if they are to survive. We also hear the stories of other conjoined twins Prof Spitz has operated on, and we see the close relationship he has built up during the past 25 years with fellow surgeon Edward Kiely.
They have an extremely relaxed manner considering the gravity and stresses of their work. "I think anyone who operates on conjoined twins should have their head examined," says Prof Spitz. And, assuming you can cope with watching the blood and gore of the operating table, it's almost comical watching the pair of them rummaging around one poor infant's insides, saying, "That's my stomach, and this is your duodenum" as they divide up the internal organs. JR