Considering how times have changed, "Never a Child" seems amazingly tame. But, back in 1979, it was very daring, as the subject of child pornography was hardly ever talked about at that time. So, keeping that in mind, this episode of "Quincy" is very good. Keep it in context when you see this show.
The show begins with a young lady spotting a pedophile trying to pick up a young runaway. However, he spots the lady and follows her up to the roof--and pushes her off! The dead lady, it turns out, had been talking with a coworker at the runaway shelter--and this angry coworker (sort of like a female version of Quincy) informs the Doctor that she was killed by 'Uncle Harry'. So, she and Quincy spend most of the episode trying to find him before he initiates this young runaway into the work of child pornography.
As I mentioned above, this one is relatively tame but it does deal with the subject matter well. The only negative is the angry social worker---as she and Quincy have enough anger for an army!! Still, well worth seeing and quite sad.