I gave "Niños robados" an 8 out of 10 relative to other TV movies. Don't think of "Citizen Kane" as a 10 and this is an 8 in comparison. It's a good, engaging TV movie, but don't expect transcendent art.
"Niños robados chronicles two fictional cases of newborns stolen from their young unwed mothers and sold to wealthy families. Apparently the practice was all too common in Spain up until about 1980. The two- part movie focuses on the deceit and corruption of the theft of infants while the second half focuses on one adoptee's search for the truth. The dishonesty of the Catholic Church, or at least some members of the holy orders who deluded themselves that they were doing God's work, and the medical community is startling, but it also explains how the black market for stolen babies ran so rampant in Spain.
I watched all three hours in one sitting, and "Niños robados" held my attention throughout. The acting, script, and production are all quite good, If the subject matter interests you, "Niños robados" is definitely worth watching.